Home / 770,666.25-1,156,331.55-321,475.59

Finding the Fourth Proportional to 770,666.25, 1,156,331.55 and 321,475.59

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Solution

The fourth proportional to 770,666.25, 1,156,331.55 and 321,475.59 is: 482,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,666.25 : 1,156,331.55 = 321,475.59 : x
  2. Step 2: Convert to fraction form
    770,666.25/1,156,331.55 = 321,475.59/x
  3. Step 3: Cross multiply
    770,666.25x = 1,156,331.55 × 321,475.59
  4. Step 4: Simplify right side
    770,666.25x = 371,732,367,271.87
  5. Step 5: Solve for x
    x = 371,732,367,271.87/770,666.25
  6. Step 6: Final answer
    x = 482,351.95

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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.