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Finding the Fourth Proportional to 648,168.60, 894,472.71 and 357,780.23

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Solution

The fourth proportional to 648,168.60, 894,472.71 and 357,780.23 is: 493,736.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,168.60 : 894,472.71 = 357,780.23 : x
  2. Step 2: Convert to fraction form
    648,168.60/894,472.71 = 357,780.23/x
  3. Step 3: Cross multiply
    648,168.60x = 894,472.71 × 357,780.23
  4. Step 4: Simplify right side
    648,168.60x = 320,024,654,987.23
  5. Step 5: Solve for x
    x = 320,024,654,987.23/648,168.60
  6. Step 6: Final answer
    x = 493,736.75

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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.