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Finding the Fourth Proportional to 581,659.20, 872,488.80 and 357,710.40

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Solution

The fourth proportional to 581,659.20, 872,488.80 and 357,710.40 is: 536,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,659.20 : 872,488.80 = 357,710.40 : x
  2. Step 2: Convert to fraction form
    581,659.20/872,488.80 = 357,710.40/x
  3. Step 3: Cross multiply
    581,659.20x = 872,488.80 × 357,710.40
  4. Step 4: Simplify right side
    581,659.20x = 312,098,317,643.52
  5. Step 5: Solve for x
    x = 312,098,317,643.52/581,659.20
  6. Step 6: Final answer
    x = 536,565.60

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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.