Home / 718,088.76-1,076,217.30-381,290.76

Finding the Fourth Proportional to 718,088.76, 1,076,217.30 and 381,290.76

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Solution

The fourth proportional to 718,088.76, 1,076,217.30 and 381,290.76 is: 571,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,088.76 : 1,076,217.30 = 381,290.76 : x
  2. Step 2: Convert to fraction form
    718,088.76/1,076,217.30 = 381,290.76/x
  3. Step 3: Cross multiply
    718,088.76x = 1,076,217.30 × 381,290.76
  4. Step 4: Simplify right side
    718,088.76x = 410,351,712,242.15
  5. Step 5: Solve for x
    x = 410,351,712,242.15/718,088.76
  6. Step 6: Final answer
    x = 571,449.85

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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.