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Finding the Fourth Proportional to 650,439.12, 897,498.72 and 408,549.36

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Solution

The fourth proportional to 650,439.12, 897,498.72 and 408,549.36 is: 563,730.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,439.12 : 897,498.72 = 408,549.36 : x
  2. Step 2: Convert to fraction form
    650,439.12/897,498.72 = 408,549.36/x
  3. Step 3: Cross multiply
    650,439.12x = 897,498.72 × 408,549.36
  4. Step 4: Simplify right side
    650,439.12x = 366,672,527,656.82
  5. Step 5: Solve for x
    x = 366,672,527,656.82/650,439.12
  6. Step 6: Final answer
    x = 563,730.74

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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.