Home / 771,511.20-1,157,266.80-452,646.60

Finding the Fourth Proportional to 771,511.20, 1,157,266.80 and 452,646.60

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Solution

The fourth proportional to 771,511.20, 1,157,266.80 and 452,646.60 is: 678,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,511.20 : 1,157,266.80 = 452,646.60 : x
  2. Step 2: Convert to fraction form
    771,511.20/1,157,266.80 = 452,646.60/x
  3. Step 3: Cross multiply
    771,511.20x = 1,157,266.80 × 452,646.60
  4. Step 4: Simplify right side
    771,511.20x = 523,832,882,312.88
  5. Step 5: Solve for x
    x = 523,832,882,312.88/771,511.20
  6. Step 6: Final answer
    x = 678,969.90

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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.