Home / 783,471.80-1,175,312.32-310,046.52

Finding the Fourth Proportional to 783,471.80, 1,175,312.32 and 310,046.52

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Solution

The fourth proportional to 783,471.80, 1,175,312.32 and 310,046.52 is: 465,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,471.80 : 1,175,312.32 = 310,046.52 : x
  2. Step 2: Convert to fraction form
    783,471.80/1,175,312.32 = 310,046.52/x
  3. Step 3: Cross multiply
    783,471.80x = 1,175,312.32 × 310,046.52
  4. Step 4: Simplify right side
    783,471.80x = 364,401,494,729.13
  5. Step 5: Solve for x
    x = 364,401,494,729.13/783,471.80
  6. Step 6: Final answer
    x = 465,111.18

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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.