Home / 1,145,534.40-1,718,285.40-387,214.20

Finding the Fourth Proportional to 1,145,534.40, 1,718,285.40 and 387,214.20

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Solution

The fourth proportional to 1,145,534.40, 1,718,285.40 and 387,214.20 is: 580,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,534.40 : 1,718,285.40 = 387,214.20 : x
  2. Step 2: Convert to fraction form
    1,145,534.40/1,718,285.40 = 387,214.20/x
  3. Step 3: Cross multiply
    1,145,534.40x = 1,718,285.40 × 387,214.20
  4. Step 4: Simplify right side
    1,145,534.40x = 665,344,506,532.68
  5. Step 5: Solve for x
    x = 665,344,506,532.68/1,145,534.40
  6. Step 6: Final answer
    x = 580,815.82

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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.