Home / 905,581.62-1,249,732.60-497,697.92

Finding the Fourth Proportional to 905,581.62, 1,249,732.60 and 497,697.92

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Solution

The fourth proportional to 905,581.62, 1,249,732.60 and 497,697.92 is: 686,839.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,581.62 : 1,249,732.60 = 497,697.92 : x
  2. Step 2: Convert to fraction form
    905,581.62/1,249,732.60 = 497,697.92/x
  3. Step 3: Cross multiply
    905,581.62x = 1,249,732.60 × 497,697.92
  4. Step 4: Simplify right side
    905,581.62x = 621,989,312,769.78
  5. Step 5: Solve for x
    x = 621,989,312,769.78/905,581.62
  6. Step 6: Final answer
    x = 686,839.59

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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.