Home / 1,006,387.50-1,388,814.75-553,668.78

Finding the Fourth Proportional to 1,006,387.50, 1,388,814.75 and 553,668.78

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Solution

The fourth proportional to 1,006,387.50, 1,388,814.75 and 553,668.78 is: 764,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,387.50 : 1,388,814.75 = 553,668.78 : x
  2. Step 2: Convert to fraction form
    1,006,387.50/1,388,814.75 = 553,668.78/x
  3. Step 3: Cross multiply
    1,006,387.50x = 1,388,814.75 × 553,668.78
  4. Step 4: Simplify right side
    1,006,387.50x = 768,943,368,278.51
  5. Step 5: Solve for x
    x = 768,943,368,278.51/1,006,387.50
  6. Step 6: Final answer
    x = 764,062.92

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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.