Home / 1,029,490.08-1,543,708.62-430,287.72

Finding the Fourth Proportional to 1,029,490.08, 1,543,708.62 and 430,287.72

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Solution

The fourth proportional to 1,029,490.08, 1,543,708.62 and 430,287.72 is: 645,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,490.08 : 1,543,708.62 = 430,287.72 : x
  2. Step 2: Convert to fraction form
    1,029,490.08/1,543,708.62 = 430,287.72/x
  3. Step 3: Cross multiply
    1,029,490.08x = 1,543,708.62 × 430,287.72
  4. Step 4: Simplify right side
    1,029,490.08x = 664,238,862,444.15
  5. Step 5: Solve for x
    x = 664,238,862,444.15/1,029,490.08
  6. Step 6: Final answer
    x = 645,211.52

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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.