Home / 1,317,761.68-1,818,510.78-714,149.68

Finding the Fourth Proportional to 1,317,761.68, 1,818,510.78 and 714,149.68

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Solution

The fourth proportional to 1,317,761.68, 1,818,510.78 and 714,149.68 is: 985,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,761.68 : 1,818,510.78 = 714,149.68 : x
  2. Step 2: Convert to fraction form
    1,317,761.68/1,818,510.78 = 714,149.68/x
  3. Step 3: Cross multiply
    1,317,761.68x = 1,818,510.78 × 714,149.68
  4. Step 4: Simplify right side
    1,317,761.68x = 1,298,688,891,613.55
  5. Step 5: Solve for x
    x = 1,298,688,891,613.55/1,317,761.68
  6. Step 6: Final answer
    x = 985,526.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.