Home / 999,365.28-1,378,489.15-655,223.52

Finding the Fourth Proportional to 999,365.28, 1,378,489.15 and 655,223.52

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Solution

The fourth proportional to 999,365.28, 1,378,489.15 and 655,223.52 is: 903,792.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,365.28 : 1,378,489.15 = 655,223.52 : x
  2. Step 2: Convert to fraction form
    999,365.28/1,378,489.15 = 655,223.52/x
  3. Step 3: Cross multiply
    999,365.28x = 1,378,489.15 × 655,223.52
  4. Step 4: Simplify right side
    999,365.28x = 903,218,513,144.81
  5. Step 5: Solve for x
    x = 903,218,513,144.81/999,365.28
  6. Step 6: Final answer
    x = 903,792.17

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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.