Home / 724,702.10-1,087,053.15-455,263.70

Finding the Fourth Proportional to 724,702.10, 1,087,053.15 and 455,263.70

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Solution

The fourth proportional to 724,702.10, 1,087,053.15 and 455,263.70 is: 682,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,702.10 : 1,087,053.15 = 455,263.70 : x
  2. Step 2: Convert to fraction form
    724,702.10/1,087,053.15 = 455,263.70/x
  3. Step 3: Cross multiply
    724,702.10x = 1,087,053.15 × 455,263.70
  4. Step 4: Simplify right side
    724,702.10x = 494,895,839,165.66
  5. Step 5: Solve for x
    x = 494,895,839,165.66/724,702.10
  6. Step 6: Final answer
    x = 682,895.55

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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.