Home / 486,653.07-729,981.32-149,691.45

Finding the Fourth Proportional to 486,653.07, 729,981.32 and 149,691.45

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Solution

The fourth proportional to 486,653.07, 729,981.32 and 149,691.45 is: 224,537.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,653.07 : 729,981.32 = 149,691.45 : x
  2. Step 2: Convert to fraction form
    486,653.07/729,981.32 = 149,691.45/x
  3. Step 3: Cross multiply
    486,653.07x = 729,981.32 × 149,691.45
  4. Step 4: Simplify right side
    486,653.07x = 109,271,962,637.94
  5. Step 5: Solve for x
    x = 109,271,962,637.94/486,653.07
  6. Step 6: Final answer
    x = 224,537.70

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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.