Home / 783,280.68-1,080,923.58-443,748.12

Finding the Fourth Proportional to 783,280.68, 1,080,923.58 and 443,748.12

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Solution

The fourth proportional to 783,280.68, 1,080,923.58 and 443,748.12 is: 612,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,280.68 : 1,080,923.58 = 443,748.12 : x
  2. Step 2: Convert to fraction form
    783,280.68/1,080,923.58 = 443,748.12/x
  3. Step 3: Cross multiply
    783,280.68x = 1,080,923.58 × 443,748.12
  4. Step 4: Simplify right side
    783,280.68x = 479,657,806,488.67
  5. Step 5: Solve for x
    x = 479,657,806,488.67/783,280.68
  6. Step 6: Final answer
    x = 612,370.28

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1.5x scale

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.