Home / 783,445.80-1,175,273.28-310,020.45

Finding the Fourth Proportional to 783,445.80, 1,175,273.28 and 310,020.45

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Solution

The fourth proportional to 783,445.80, 1,175,273.28 and 310,020.45 is: 465,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,445.80 : 1,175,273.28 = 310,020.45 : x
  2. Step 2: Convert to fraction form
    783,445.80/1,175,273.28 = 310,020.45/x
  3. Step 3: Cross multiply
    783,445.80x = 1,175,273.28 × 310,020.45
  4. Step 4: Simplify right side
    783,445.80x = 364,358,751,138.58
  5. Step 5: Solve for x
    x = 364,358,751,138.58/783,445.80
  6. Step 6: Final answer
    x = 465,072.06

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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.