Home / 1,230,191.52-1,697,665.36-686,327.42

Finding the Fourth Proportional to 1,230,191.52, 1,697,665.36 and 686,327.42

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Solution

The fourth proportional to 1,230,191.52, 1,697,665.36 and 686,327.42 is: 947,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,191.52 : 1,697,665.36 = 686,327.42 : x
  2. Step 2: Convert to fraction form
    1,230,191.52/1,697,665.36 = 686,327.42/x
  3. Step 3: Cross multiply
    1,230,191.52x = 1,697,665.36 × 686,327.42
  4. Step 4: Simplify right side
    1,230,191.52x = 1,165,154,286,552.17
  5. Step 5: Solve for x
    x = 1,165,154,286,552.17/1,230,191.52
  6. Step 6: Final answer
    x = 947,132.43

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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.