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Finding the Fourth Proportional to 577,200.90, 865,801.35 and 338,052.45

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Solution

The fourth proportional to 577,200.90, 865,801.35 and 338,052.45 is: 507,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,200.90 : 865,801.35 = 338,052.45 : x
  2. Step 2: Convert to fraction form
    577,200.90/865,801.35 = 338,052.45/x
  3. Step 3: Cross multiply
    577,200.90x = 865,801.35 × 338,052.45
  4. Step 4: Simplify right side
    577,200.90x = 292,686,267,580.81
  5. Step 5: Solve for x
    x = 292,686,267,580.81/577,200.90
  6. Step 6: Final answer
    x = 507,078.68

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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.