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Finding the Fourth Proportional to 870,501.60, 1,304,715.60 and 365,061.60

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Solution

The fourth proportional to 870,501.60, 1,304,715.60 and 365,061.60 is: 547,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,501.60 : 1,304,715.60 = 365,061.60 : x
  2. Step 2: Convert to fraction form
    870,501.60/1,304,715.60 = 365,061.60/x
  3. Step 3: Cross multiply
    870,501.60x = 1,304,715.60 × 365,061.60
  4. Step 4: Simplify right side
    870,501.60x = 476,301,564,480.96
  5. Step 5: Solve for x
    x = 476,301,564,480.96/870,501.60
  6. Step 6: Final answer
    x = 547,157.60

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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.