Home / 1,247,012.88-1,720,877.40-674,052.72

Finding the Fourth Proportional to 1,247,012.88, 1,720,877.40 and 674,052.72

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Solution

The fourth proportional to 1,247,012.88, 1,720,877.40 and 674,052.72 is: 930,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,012.88 : 1,720,877.40 = 674,052.72 : x
  2. Step 2: Convert to fraction form
    1,247,012.88/1,720,877.40 = 674,052.72/x
  3. Step 3: Cross multiply
    1,247,012.88x = 1,720,877.40 × 674,052.72
  4. Step 4: Simplify right side
    1,247,012.88x = 1,159,962,092,256.53
  5. Step 5: Solve for x
    x = 1,159,962,092,256.53/1,247,012.88
  6. Step 6: Final answer
    x = 930,192.55

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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.