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Finding the Fourth Proportional to 870,066, 1,200,691.44 and 530,604.72

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Solution

The fourth proportional to 870,066, 1,200,691.44 and 530,604.72 is: 732,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,066 : 1,200,691.44 = 530,604.72 : x
  2. Step 2: Convert to fraction form
    870,066/1,200,691.44 = 530,604.72/x
  3. Step 3: Cross multiply
    870,066x = 1,200,691.44 × 530,604.72
  4. Step 4: Simplify right side
    870,066x = 637,092,545,327.60
  5. Step 5: Solve for x
    x = 637,092,545,327.60/870,066
  6. Step 6: Final answer
    x = 732,234.73

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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.