Home / 1,431,424.39-1,975,378.89-778,051.95

Finding the Fourth Proportional to 1,431,424.39, 1,975,378.89 and 778,051.95

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Solution

The fourth proportional to 1,431,424.39, 1,975,378.89 and 778,051.95 is: 1,073,718.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,424.39 : 1,975,378.89 = 778,051.95 : x
  2. Step 2: Convert to fraction form
    1,431,424.39/1,975,378.89 = 778,051.95/x
  3. Step 3: Cross multiply
    1,431,424.39x = 1,975,378.89 × 778,051.95
  4. Step 4: Simplify right side
    1,431,424.39x = 1,536,947,387,027.97
  5. Step 5: Solve for x
    x = 1,536,947,387,027.97/1,431,424.39
  6. Step 6: Final answer
    x = 1,073,718.88

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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.