Home / 899,897.46-1,242,171.23-518,076.42

Finding the Fourth Proportional to 899,897.46, 1,242,171.23 and 518,076.42

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Solution

The fourth proportional to 899,897.46, 1,242,171.23 and 518,076.42 is: 715,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,897.46 : 1,242,171.23 = 518,076.42 : x
  2. Step 2: Convert to fraction form
    899,897.46/1,242,171.23 = 518,076.42/x
  3. Step 3: Cross multiply
    899,897.46x = 1,242,171.23 × 518,076.42
  4. Step 4: Simplify right side
    899,897.46x = 643,539,623,865.40
  5. Step 5: Solve for x
    x = 643,539,623,865.40/899,897.46
  6. Step 6: Final answer
    x = 715,125.50

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.