Home / 762,605.76-1,143,617.30-257,030.90

Finding the Fourth Proportional to 762,605.76, 1,143,617.30 and 257,030.90

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Solution

The fourth proportional to 762,605.76, 1,143,617.30 and 257,030.90 is: 385,448.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,605.76 : 1,143,617.30 = 257,030.90 : x
  2. Step 2: Convert to fraction form
    762,605.76/1,143,617.30 = 257,030.90/x
  3. Step 3: Cross multiply
    762,605.76x = 1,143,617.30 × 257,030.90
  4. Step 4: Simplify right side
    762,605.76x = 293,944,983,874.57
  5. Step 5: Solve for x
    x = 293,944,983,874.57/762,605.76
  6. Step 6: Final answer
    x = 385,448.16

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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.