Home / 902,431.80-1,353,647.70-618,996.60

Finding the Fourth Proportional to 902,431.80, 1,353,647.70 and 618,996.60

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Solution

The fourth proportional to 902,431.80, 1,353,647.70 and 618,996.60 is: 928,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,431.80 : 1,353,647.70 = 618,996.60 : x
  2. Step 2: Convert to fraction form
    902,431.80/1,353,647.70 = 618,996.60/x
  3. Step 3: Cross multiply
    902,431.80x = 1,353,647.70 × 618,996.60
  4. Step 4: Simplify right side
    902,431.80x = 837,903,323,897.82
  5. Step 5: Solve for x
    x = 837,903,323,897.82/902,431.80
  6. Step 6: Final answer
    x = 928,494.90

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.