Home / 571,523.40-857,285.10-288,088.20

Finding the Fourth Proportional to 571,523.40, 857,285.10 and 288,088.20

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Solution

The fourth proportional to 571,523.40, 857,285.10 and 288,088.20 is: 432,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,523.40 : 857,285.10 = 288,088.20 : x
  2. Step 2: Convert to fraction form
    571,523.40/857,285.10 = 288,088.20/x
  3. Step 3: Cross multiply
    571,523.40x = 857,285.10 × 288,088.20
  4. Step 4: Simplify right side
    571,523.40x = 246,973,721,345.82
  5. Step 5: Solve for x
    x = 246,973,721,345.82/571,523.40
  6. Step 6: Final answer
    x = 432,132.30

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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.