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Finding the Fourth Proportional to 661,250.50, 912,602.64 and 370,942.18

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Solution

The fourth proportional to 661,250.50, 912,602.64 and 370,942.18 is: 511,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,250.50 : 912,602.64 = 370,942.18 : x
  2. Step 2: Convert to fraction form
    661,250.50/912,602.64 = 370,942.18/x
  3. Step 3: Cross multiply
    661,250.50x = 912,602.64 × 370,942.18
  4. Step 4: Simplify right side
    661,250.50x = 338,522,812,755.36
  5. Step 5: Solve for x
    x = 338,522,812,755.36/661,250.50
  6. Step 6: Final answer
    x = 511,943.38

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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.