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Finding the Fourth Proportional to 867,442, 1,197,195.68 and 499,847.62

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Solution

The fourth proportional to 867,442, 1,197,195.68 and 499,847.62 is: 689,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,442 : 1,197,195.68 = 499,847.62 : x
  2. Step 2: Convert to fraction form
    867,442/1,197,195.68 = 499,847.62/x
  3. Step 3: Cross multiply
    867,442x = 1,197,195.68 × 499,847.62
  4. Step 4: Simplify right side
    867,442x = 598,415,411,322.28
  5. Step 5: Solve for x
    x = 598,415,411,322.28/867,442
  6. Step 6: Final answer
    x = 689,862.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.