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Finding the Fourth Proportional to 607,528.60, 910,709.70 and 472,517.80

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Solution

The fourth proportional to 607,528.60, 910,709.70 and 472,517.80 is: 708,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,528.60 : 910,709.70 = 472,517.80 : x
  2. Step 2: Convert to fraction form
    607,528.60/910,709.70 = 472,517.80/x
  3. Step 3: Cross multiply
    607,528.60x = 910,709.70 × 472,517.80
  4. Step 4: Simplify right side
    607,528.60x = 430,326,543,882.66
  5. Step 5: Solve for x
    x = 430,326,543,882.66/607,528.60
  6. Step 6: Final answer
    x = 708,323.10

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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.