Home / 652,281.39-899,315.06-422,432.55

Finding the Fourth Proportional to 652,281.39, 899,315.06 and 422,432.55

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Solution

The fourth proportional to 652,281.39, 899,315.06 and 422,432.55 is: 582,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,281.39 : 899,315.06 = 422,432.55 : x
  2. Step 2: Convert to fraction form
    652,281.39/899,315.06 = 422,432.55/x
  3. Step 3: Cross multiply
    652,281.39x = 899,315.06 × 422,432.55
  4. Step 4: Simplify right side
    652,281.39x = 379,899,951,937.04
  5. Step 5: Solve for x
    x = 379,899,951,937.04/652,281.39
  6. Step 6: Final answer
    x = 582,417.28

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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.