Home / 747,713.20-1,121,569.80-298,503.40

Finding the Fourth Proportional to 747,713.20, 1,121,569.80 and 298,503.40

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Solution

The fourth proportional to 747,713.20, 1,121,569.80 and 298,503.40 is: 447,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,713.20 : 1,121,569.80 = 298,503.40 : x
  2. Step 2: Convert to fraction form
    747,713.20/1,121,569.80 = 298,503.40/x
  3. Step 3: Cross multiply
    747,713.20x = 1,121,569.80 × 298,503.40
  4. Step 4: Simplify right side
    747,713.20x = 334,792,398,637.32
  5. Step 5: Solve for x
    x = 334,792,398,637.32/747,713.20
  6. Step 6: Final answer
    x = 447,755.10

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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.