Home / 913,318.44-1,369,572.66-486,774.78

Finding the Fourth Proportional to 913,318.44, 1,369,572.66 and 486,774.78

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Solution

The fourth proportional to 913,318.44, 1,369,572.66 and 486,774.78 is: 729,946.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,318.44 : 1,369,572.66 = 486,774.78 : x
  2. Step 2: Convert to fraction form
    913,318.44/1,369,572.66 = 486,774.78/x
  3. Step 3: Cross multiply
    913,318.44x = 1,369,572.66 × 486,774.78
  4. Step 4: Simplify right side
    913,318.44x = 666,673,430,265.52
  5. Step 5: Solve for x
    x = 666,673,430,265.52/913,318.44
  6. Step 6: Final answer
    x = 729,946.32

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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.