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Finding the Fourth Proportional to 646,721.20, 970,519.20 and 362,411.20

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Solution

The fourth proportional to 646,721.20, 970,519.20 and 362,411.20 is: 543,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,721.20 : 970,519.20 = 362,411.20 : x
  2. Step 2: Convert to fraction form
    646,721.20/970,519.20 = 362,411.20/x
  3. Step 3: Cross multiply
    646,721.20x = 970,519.20 × 362,411.20
  4. Step 4: Simplify right side
    646,721.20x = 351,727,027,895.04
  5. Step 5: Solve for x
    x = 351,727,027,895.04/646,721.20
  6. Step 6: Final answer
    x = 543,861.91

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1.5x scale

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.