Home / 722,265.30-1,083,397.95-543,806.10

Finding the Fourth Proportional to 722,265.30, 1,083,397.95 and 543,806.10

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Solution

The fourth proportional to 722,265.30, 1,083,397.95 and 543,806.10 is: 815,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,265.30 : 1,083,397.95 = 543,806.10 : x
  2. Step 2: Convert to fraction form
    722,265.30/1,083,397.95 = 543,806.10/x
  3. Step 3: Cross multiply
    722,265.30x = 1,083,397.95 × 543,806.10
  4. Step 4: Simplify right side
    722,265.30x = 589,158,413,937.50
  5. Step 5: Solve for x
    x = 589,158,413,937.50/722,265.30
  6. Step 6: Final answer
    x = 815,709.15

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Double scale
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Similar ratio
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1.5x scale

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.