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Finding the Fourth Proportional to 684,596.61, 944,707.46 and 378,668.12

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Solution

The fourth proportional to 684,596.61, 944,707.46 and 378,668.12 is: 522,542.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,596.61 : 944,707.46 = 378,668.12 : x
  2. Step 2: Convert to fraction form
    684,596.61/944,707.46 = 378,668.12/x
  3. Step 3: Cross multiply
    684,596.61x = 944,707.46 × 378,668.12
  4. Step 4: Simplify right side
    684,596.61x = 357,730,591,211.30
  5. Step 5: Solve for x
    x = 357,730,591,211.30/684,596.61
  6. Step 6: Final answer
    x = 522,542.16

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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.