Home / 783,279.18-1,080,921.51-443,746.62

Finding the Fourth Proportional to 783,279.18, 1,080,921.51 and 443,746.62

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Solution

The fourth proportional to 783,279.18, 1,080,921.51 and 443,746.62 is: 612,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,279.18 : 1,080,921.51 = 443,746.62 : x
  2. Step 2: Convert to fraction form
    783,279.18/1,080,921.51 = 443,746.62/x
  3. Step 3: Cross multiply
    783,279.18x = 1,080,921.51 × 443,746.62
  4. Step 4: Simplify right side
    783,279.18x = 479,655,266,547.80
  5. Step 5: Solve for x
    x = 479,655,266,547.80/783,279.18
  6. Step 6: Final answer
    x = 612,368.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.