Home / 1,266,818.70-1,748,238.15-722,943.66

Finding the Fourth Proportional to 1,266,818.70, 1,748,238.15 and 722,943.66

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Solution

The fourth proportional to 1,266,818.70, 1,748,238.15 and 722,943.66 is: 997,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,818.70 : 1,748,238.15 = 722,943.66 : x
  2. Step 2: Convert to fraction form
    1,266,818.70/1,748,238.15 = 722,943.66/x
  3. Step 3: Cross multiply
    1,266,818.70x = 1,748,238.15 × 722,943.66
  4. Step 4: Simplify right side
    1,266,818.70x = 1,263,877,686,712.63
  5. Step 5: Solve for x
    x = 1,263,877,686,712.63/1,266,818.70
  6. Step 6: Final answer
    x = 997,678.43

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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.