Home / 718,316.20-1,077,474.30-657,663.40

Finding the Fourth Proportional to 718,316.20, 1,077,474.30 and 657,663.40

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Solution

The fourth proportional to 718,316.20, 1,077,474.30 and 657,663.40 is: 986,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,316.20 : 1,077,474.30 = 657,663.40 : x
  2. Step 2: Convert to fraction form
    718,316.20/1,077,474.30 = 657,663.40/x
  3. Step 3: Cross multiply
    718,316.20x = 1,077,474.30 × 657,663.40
  4. Step 4: Simplify right side
    718,316.20x = 708,615,411,550.62
  5. Step 5: Solve for x
    x = 708,615,411,550.62/718,316.20
  6. Step 6: Final answer
    x = 986,495.10

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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.