Home / 1,120,088.64-1,680,693.42-512,875.68

Finding the Fourth Proportional to 1,120,088.64, 1,680,693.42 and 512,875.68

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Solution

The fourth proportional to 1,120,088.64, 1,680,693.42 and 512,875.68 is: 769,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,088.64 : 1,680,693.42 = 512,875.68 : x
  2. Step 2: Convert to fraction form
    1,120,088.64/1,680,693.42 = 512,875.68/x
  3. Step 3: Cross multiply
    1,120,088.64x = 1,680,693.42 × 512,875.68
  4. Step 4: Simplify right side
    1,120,088.64x = 861,986,780,654.03
  5. Step 5: Solve for x
    x = 861,986,780,654.03/1,120,088.64
  6. Step 6: Final answer
    x = 769,570.15

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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.