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Finding the Fourth Proportional to 605,624.30, 908,436.45 and 487,526.30

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Solution

The fourth proportional to 605,624.30, 908,436.45 and 487,526.30 is: 731,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,624.30 : 908,436.45 = 487,526.30 : x
  2. Step 2: Convert to fraction form
    605,624.30/908,436.45 = 487,526.30/x
  3. Step 3: Cross multiply
    605,624.30x = 908,436.45 × 487,526.30
  4. Step 4: Simplify right side
    605,624.30x = 442,886,661,253.64
  5. Step 5: Solve for x
    x = 442,886,661,253.64/605,624.30
  6. Step 6: Final answer
    x = 731,289.45

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Half scale
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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.