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Finding the Fourth Proportional to 614,093.20, 847,437.40 and 342,155.28

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Solution

The fourth proportional to 614,093.20, 847,437.40 and 342,155.28 is: 472,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,093.20 : 847,437.40 = 342,155.28 : x
  2. Step 2: Convert to fraction form
    614,093.20/847,437.40 = 342,155.28/x
  3. Step 3: Cross multiply
    614,093.20x = 847,437.40 × 342,155.28
  4. Step 4: Simplify right side
    614,093.20x = 289,955,179,007.67
  5. Step 5: Solve for x
    x = 289,955,179,007.67/614,093.20
  6. Step 6: Final answer
    x = 472,168.04

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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.