Home / 875,254.40-1,312,363.20-455,350.40

Finding the Fourth Proportional to 875,254.40, 1,312,363.20 and 455,350.40

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Solution

The fourth proportional to 875,254.40, 1,312,363.20 and 455,350.40 is: 682,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,254.40 : 1,312,363.20 = 455,350.40 : x
  2. Step 2: Convert to fraction form
    875,254.40/1,312,363.20 = 455,350.40/x
  3. Step 3: Cross multiply
    875,254.40x = 1,312,363.20 × 455,350.40
  4. Step 4: Simplify right side
    875,254.40x = 597,585,108,065.28
  5. Step 5: Solve for x
    x = 597,585,108,065.28/875,254.40
  6. Step 6: Final answer
    x = 682,755.90

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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.