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Finding the Fourth Proportional to 614,328.30, 847,743.17 and 342,425.88

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Solution

The fourth proportional to 614,328.30, 847,743.17 and 342,425.88 is: 472,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,328.30 : 847,743.17 = 342,425.88 : x
  2. Step 2: Convert to fraction form
    614,328.30/847,743.17 = 342,425.88/x
  3. Step 3: Cross multiply
    614,328.30x = 847,743.17 × 342,425.88
  4. Step 4: Simplify right side
    614,328.30x = 290,289,199,289.11
  5. Step 5: Solve for x
    x = 290,289,199,289.11/614,328.30
  6. Step 6: Final answer
    x = 472,531.05

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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.