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Finding the Fourth Proportional to 442,792.16, 611,251.08 and 299,985.92

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Solution

The fourth proportional to 442,792.16, 611,251.08 and 299,985.92 is: 414,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,792.16 : 611,251.08 = 299,985.92 : x
  2. Step 2: Convert to fraction form
    442,792.16/611,251.08 = 299,985.92/x
  3. Step 3: Cross multiply
    442,792.16x = 611,251.08 × 299,985.92
  4. Step 4: Simplify right side
    442,792.16x = 183,366,717,584.79
  5. Step 5: Solve for x
    x = 183,366,717,584.79/442,792.16
  6. Step 6: Final answer
    x = 414,114.64

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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.