Home / 983,451.18-1,475,439.28-352,428.78

Finding the Fourth Proportional to 983,451.18, 1,475,439.28 and 352,428.78

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Solution

The fourth proportional to 983,451.18, 1,475,439.28 and 352,428.78 is: 528,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,451.18 : 1,475,439.28 = 352,428.78 : x
  2. Step 2: Convert to fraction form
    983,451.18/1,475,439.28 = 352,428.78/x
  3. Step 3: Cross multiply
    983,451.18x = 1,475,439.28 × 352,428.78
  4. Step 4: Simplify right side
    983,451.18x = 519,987,265,414.48
  5. Step 5: Solve for x
    x = 519,987,265,414.48/983,451.18
  6. Step 6: Final answer
    x = 528,737.24

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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.