Home / 4,891,386.40-7,338,116.40-1,479,392.80

Finding the Fourth Proportional to 4,891,386.40, 7,338,116.40 and 1,479,392.80

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Solution

The fourth proportional to 4,891,386.40, 7,338,116.40 and 1,479,392.80 is: 2,219,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891,386.40 : 7,338,116.40 = 1,479,392.80 : x
  2. Step 2: Convert to fraction form
    4,891,386.40/7,338,116.40 = 1,479,392.80/x
  3. Step 3: Cross multiply
    4,891,386.40x = 7,338,116.40 × 1,479,392.80
  4. Step 4: Simplify right side
    4,891,386.40x = 10,855,956,567,721.92
  5. Step 5: Solve for x
    x = 10,855,956,567,721.92/4,891,386.40
  6. Step 6: Final answer
    x = 2,219,402.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.