Home / 1,287,464.97-1,776,519.97-771,097.87

Finding the Fourth Proportional to 1,287,464.97, 1,776,519.97 and 771,097.87

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Solution

The fourth proportional to 1,287,464.97, 1,776,519.97 and 771,097.87 is: 1,064,006.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,464.97 : 1,776,519.97 = 771,097.87 : x
  2. Step 2: Convert to fraction form
    1,287,464.97/1,776,519.97 = 771,097.87/x
  3. Step 3: Cross multiply
    1,287,464.97x = 1,776,519.97 × 771,097.87
  4. Step 4: Simplify right side
    1,287,464.97x = 1,369,870,758,510.42
  5. Step 5: Solve for x
    x = 1,369,870,758,510.42/1,287,464.97
  6. Step 6: Final answer
    x = 1,064,006.24

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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.