Home / 753,291.64-1,039,545.30-409,128.04

Finding the Fourth Proportional to 753,291.64, 1,039,545.30 and 409,128.04

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Solution

The fourth proportional to 753,291.64, 1,039,545.30 and 409,128.04 is: 564,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,291.64 : 1,039,545.30 = 409,128.04 : x
  2. Step 2: Convert to fraction form
    753,291.64/1,039,545.30 = 409,128.04/x
  3. Step 3: Cross multiply
    753,291.64x = 1,039,545.30 × 409,128.04
  4. Step 4: Simplify right side
    753,291.64x = 425,307,131,080.21
  5. Step 5: Solve for x
    x = 425,307,131,080.21/753,291.64
  6. Step 6: Final answer
    x = 564,598.24

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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.