Home / 718,531.20-1,076,630.40-451,814.40

Finding the Fourth Proportional to 718,531.20, 1,076,630.40 and 451,814.40

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Solution

The fourth proportional to 718,531.20, 1,076,630.40 and 451,814.40 is: 676,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,531.20 : 1,076,630.40 = 451,814.40 : x
  2. Step 2: Convert to fraction form
    718,531.20/1,076,630.40 = 451,814.40/x
  3. Step 3: Cross multiply
    718,531.20x = 1,076,630.40 × 451,814.40
  4. Step 4: Simplify right side
    718,531.20x = 486,437,118,197.76
  5. Step 5: Solve for x
    x = 486,437,118,197.76/718,531.20
  6. Step 6: Final answer
    x = 676,988.16

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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.