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Finding the Fourth Proportional to 646,738.70, 970,545.45 and 362,428.70

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Solution

The fourth proportional to 646,738.70, 970,545.45 and 362,428.70 is: 543,888.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,738.70 : 970,545.45 = 362,428.70 : x
  2. Step 2: Convert to fraction form
    646,738.70/970,545.45 = 362,428.70/x
  3. Step 3: Cross multiply
    646,738.70x = 970,545.45 × 362,428.70
  4. Step 4: Simplify right side
    646,738.70x = 351,753,525,734.42
  5. Step 5: Solve for x
    x = 351,753,525,734.42/646,738.70
  6. Step 6: Final answer
    x = 543,888.17

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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.