Home / 723,776.70-1,085,140.17-486,530.94

Finding the Fourth Proportional to 723,776.70, 1,085,140.17 and 486,530.94

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Solution

The fourth proportional to 723,776.70, 1,085,140.17 and 486,530.94 is: 729,443.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,776.70 : 1,085,140.17 = 486,530.94 : x
  2. Step 2: Convert to fraction form
    723,776.70/1,085,140.17 = 486,530.94/x
  3. Step 3: Cross multiply
    723,776.70x = 1,085,140.17 × 486,530.94
  4. Step 4: Simplify right side
    723,776.70x = 527,954,266,941.86
  5. Step 5: Solve for x
    x = 527,954,266,941.86/723,776.70
  6. Step 6: Final answer
    x = 729,443.58

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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.