Home / 1,028,330.47-1,542,639.35-429,154.43

Finding the Fourth Proportional to 1,028,330.47, 1,542,639.35 and 429,154.43

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Solution

The fourth proportional to 1,028,330.47, 1,542,639.35 and 429,154.43 is: 643,791.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,330.47 : 1,542,639.35 = 429,154.43 : x
  2. Step 2: Convert to fraction form
    1,028,330.47/1,542,639.35 = 429,154.43/x
  3. Step 3: Cross multiply
    1,028,330.47x = 1,542,639.35 × 429,154.43
  4. Step 4: Simplify right side
    1,028,330.47x = 662,030,515,874.31
  5. Step 5: Solve for x
    x = 662,030,515,874.31/1,028,330.47
  6. Step 6: Final answer
    x = 643,791.60

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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.