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Finding the Fourth Proportional to 652,600.30, 978,900.45 and 608,313.55

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Solution

The fourth proportional to 652,600.30, 978,900.45 and 608,313.55 is: 912,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,600.30 : 978,900.45 = 608,313.55 : x
  2. Step 2: Convert to fraction form
    652,600.30/978,900.45 = 608,313.55/x
  3. Step 3: Cross multiply
    652,600.30x = 978,900.45 × 608,313.55
  4. Step 4: Simplify right side
    652,600.30x = 595,478,407,836.10
  5. Step 5: Solve for x
    x = 595,478,407,836.10/652,600.30
  6. Step 6: Final answer
    x = 912,470.33

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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.