Home / 718,312.20-1,077,468.30-657,659.40

Finding the Fourth Proportional to 718,312.20, 1,077,468.30 and 657,659.40

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Solution

The fourth proportional to 718,312.20, 1,077,468.30 and 657,659.40 is: 986,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,312.20 : 1,077,468.30 = 657,659.40 : x
  2. Step 2: Convert to fraction form
    718,312.20/1,077,468.30 = 657,659.40/x
  3. Step 3: Cross multiply
    718,312.20x = 1,077,468.30 × 657,659.40
  4. Step 4: Simplify right side
    718,312.20x = 708,607,155,697.02
  5. Step 5: Solve for x
    x = 708,607,155,697.02/718,312.20
  6. Step 6: Final answer
    x = 986,489.10

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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.