Home / 1,502,089.39-2,072,880.95-813,778.79

Finding the Fourth Proportional to 1,502,089.39, 2,072,880.95 and 813,778.79

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Solution

The fourth proportional to 1,502,089.39, 2,072,880.95 and 813,778.79 is: 1,123,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502,089.39 : 2,072,880.95 = 813,778.79 : x
  2. Step 2: Convert to fraction form
    1,502,089.39/2,072,880.95 = 813,778.79/x
  3. Step 3: Cross multiply
    1,502,089.39x = 2,072,880.95 × 813,778.79
  4. Step 4: Simplify right side
    1,502,089.39x = 1,686,866,552,418.36
  5. Step 5: Solve for x
    x = 1,686,866,552,418.36/1,502,089.39
  6. Step 6: Final answer
    x = 1,123,013.43

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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.