Home / 770,159.13-1,154,462.31-321,127.95

Finding the Fourth Proportional to 770,159.13, 1,154,462.31 and 321,127.95

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Solution

The fourth proportional to 770,159.13, 1,154,462.31 and 321,127.95 is: 481,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,159.13 : 1,154,462.31 = 321,127.95 : x
  2. Step 2: Convert to fraction form
    770,159.13/1,154,462.31 = 321,127.95/x
  3. Step 3: Cross multiply
    770,159.13x = 1,154,462.31 × 321,127.95
  4. Step 4: Simplify right side
    770,159.13x = 370,730,114,962.57
  5. Step 5: Solve for x
    x = 370,730,114,962.57/770,159.13
  6. Step 6: Final answer
    x = 481,368.20

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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.