Home / 828,293.70-1,242,003.15-354,443.70

Finding the Fourth Proportional to 828,293.70, 1,242,003.15 and 354,443.70

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Solution

The fourth proportional to 828,293.70, 1,242,003.15 and 354,443.70 is: 531,478.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,293.70 : 1,242,003.15 = 354,443.70 : x
  2. Step 2: Convert to fraction form
    828,293.70/1,242,003.15 = 354,443.70/x
  3. Step 3: Cross multiply
    828,293.70x = 1,242,003.15 × 354,443.70
  4. Step 4: Simplify right side
    828,293.70x = 440,220,191,897.66
  5. Step 5: Solve for x
    x = 440,220,191,897.66/828,293.70
  6. Step 6: Final answer
    x = 531,478.38

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Double scale
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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.