Home / 1,045,213.72-1,440,848.46-815,510.68

Finding the Fourth Proportional to 1,045,213.72, 1,440,848.46 and 815,510.68

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Solution

The fourth proportional to 1,045,213.72, 1,440,848.46 and 815,510.68 is: 1,124,198.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,213.72 : 1,440,848.46 = 815,510.68 : x
  2. Step 2: Convert to fraction form
    1,045,213.72/1,440,848.46 = 815,510.68/x
  3. Step 3: Cross multiply
    1,045,213.72x = 1,440,848.46 × 815,510.68
  4. Step 4: Simplify right side
    1,045,213.72x = 1,175,027,307,391.55
  5. Step 5: Solve for x
    x = 1,175,027,307,391.55/1,045,213.72
  6. Step 6: Final answer
    x = 1,124,198.13

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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.