Home / 989,546.64-1,484,417.20-279,580.24

Finding the Fourth Proportional to 989,546.64, 1,484,417.20 and 279,580.24

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Solution

The fourth proportional to 989,546.64, 1,484,417.20 and 279,580.24 is: 419,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,546.64 : 1,484,417.20 = 279,580.24 : x
  2. Step 2: Convert to fraction form
    989,546.64/1,484,417.20 = 279,580.24/x
  3. Step 3: Cross multiply
    989,546.64x = 1,484,417.20 × 279,580.24
  4. Step 4: Simplify right side
    989,546.64x = 415,013,717,036.13
  5. Step 5: Solve for x
    x = 415,013,717,036.13/989,546.64
  6. Step 6: Final answer
    x = 419,397.83

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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.