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Finding the Fourth Proportional to 493,411.64, 739,521.36 and 240,312.74

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Solution

The fourth proportional to 493,411.64, 739,521.36 and 240,312.74 is: 360,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,411.64 : 739,521.36 = 240,312.74 : x
  2. Step 2: Convert to fraction form
    493,411.64/739,521.36 = 240,312.74/x
  3. Step 3: Cross multiply
    493,411.64x = 739,521.36 × 240,312.74
  4. Step 4: Simplify right side
    493,411.64x = 177,716,400,612.52
  5. Step 5: Solve for x
    x = 177,716,400,612.52/493,411.64
  6. Step 6: Final answer
    x = 360,178.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.