Home / 1,431,818.62-1,975,947.11-778,488.58

Finding the Fourth Proportional to 1,431,818.62, 1,975,947.11 and 778,488.58

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Solution

The fourth proportional to 1,431,818.62, 1,975,947.11 and 778,488.58 is: 1,074,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,818.62 : 1,975,947.11 = 778,488.58 : x
  2. Step 2: Convert to fraction form
    1,431,818.62/1,975,947.11 = 778,488.58/x
  3. Step 3: Cross multiply
    1,431,818.62x = 1,975,947.11 × 778,488.58
  4. Step 4: Simplify right side
    1,431,818.62x = 1,538,252,255,926.56
  5. Step 5: Solve for x
    x = 1,538,252,255,926.56/1,431,818.62
  6. Step 6: Final answer
    x = 1,074,334.58

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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.