Home / 1,240,503.76-1,712,161.80-756,965.20

Finding the Fourth Proportional to 1,240,503.76, 1,712,161.80 and 756,965.20

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Solution

The fourth proportional to 1,240,503.76, 1,712,161.80 and 756,965.20 is: 1,044,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,503.76 : 1,712,161.80 = 756,965.20 : x
  2. Step 2: Convert to fraction form
    1,240,503.76/1,712,161.80 = 756,965.20/x
  3. Step 3: Cross multiply
    1,240,503.76x = 1,712,161.80 × 756,965.20
  4. Step 4: Simplify right side
    1,240,503.76x = 1,296,046,899,369.36
  5. Step 5: Solve for x
    x = 1,296,046,899,369.36/1,240,503.76
  6. Step 6: Final answer
    x = 1,044,774.66

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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.