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Finding the Fourth Proportional to 648,147.50, 894,443.62 and 357,759.16

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Solution

The fourth proportional to 648,147.50, 894,443.62 and 357,759.16 is: 493,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,147.50 : 894,443.62 = 357,759.16 : x
  2. Step 2: Convert to fraction form
    648,147.50/894,443.62 = 357,759.16/x
  3. Step 3: Cross multiply
    648,147.50x = 894,443.62 × 357,759.16
  4. Step 4: Simplify right side
    648,147.50x = 319,995,398,158.56
  5. Step 5: Solve for x
    x = 319,995,398,158.56/648,147.50
  6. Step 6: Final answer
    x = 493,707.68

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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.