Home / 1,399,510.88-1,931,387.15-787,703.27

Finding the Fourth Proportional to 1,399,510.88, 1,931,387.15 and 787,703.27

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Solution

The fourth proportional to 1,399,510.88, 1,931,387.15 and 787,703.27 is: 1,087,065.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,510.88 : 1,931,387.15 = 787,703.27 : x
  2. Step 2: Convert to fraction form
    1,399,510.88/1,931,387.15 = 787,703.27/x
  3. Step 3: Cross multiply
    1,399,510.88x = 1,931,387.15 × 787,703.27
  4. Step 4: Simplify right side
    1,399,510.88x = 1,521,359,960,095.53
  5. Step 5: Solve for x
    x = 1,521,359,960,095.53/1,399,510.88
  6. Step 6: Final answer
    x = 1,087,065.48

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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.