Home / 992,705.40-1,487,301.30-959,815.80

Finding the Fourth Proportional to 992,705.40, 1,487,301.30 and 959,815.80

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Solution

The fourth proportional to 992,705.40, 1,487,301.30 and 959,815.80 is: 1,438,025.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,705.40 : 1,487,301.30 = 959,815.80 : x
  2. Step 2: Convert to fraction form
    992,705.40/1,487,301.30 = 959,815.80/x
  3. Step 3: Cross multiply
    992,705.40x = 1,487,301.30 × 959,815.80
  4. Step 4: Simplify right side
    992,705.40x = 1,427,535,287,100.54
  5. Step 5: Solve for x
    x = 1,427,535,287,100.54/992,705.40
  6. Step 6: Final answer
    x = 1,438,025.11

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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.