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Finding the Fourth Proportional to 684,127.62, 944,432.76 and 429,619.14

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Solution

The fourth proportional to 684,127.62, 944,432.76 and 429,619.14 is: 593,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,127.62 : 944,432.76 = 429,619.14 : x
  2. Step 2: Convert to fraction form
    684,127.62/944,432.76 = 429,619.14/x
  3. Step 3: Cross multiply
    684,127.62x = 944,432.76 × 429,619.14
  4. Step 4: Simplify right side
    684,127.62x = 405,746,390,139.03
  5. Step 5: Solve for x
    x = 405,746,390,139.03/684,127.62
  6. Step 6: Final answer
    x = 593,085.82

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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.