Home / 742,704.15-1,024,934.81-420,476.43

Finding the Fourth Proportional to 742,704.15, 1,024,934.81 and 420,476.43

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Solution

The fourth proportional to 742,704.15, 1,024,934.81 and 420,476.43 is: 580,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,704.15 : 1,024,934.81 = 420,476.43 : x
  2. Step 2: Convert to fraction form
    742,704.15/1,024,934.81 = 420,476.43/x
  3. Step 3: Cross multiply
    742,704.15x = 1,024,934.81 × 420,476.43
  4. Step 4: Simplify right side
    742,704.15x = 430,960,929,891.53
  5. Step 5: Solve for x
    x = 430,960,929,891.53/742,704.15
  6. Step 6: Final answer
    x = 580,259.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.