Home / 1,216,011.69-1,677,865.19-763,098.57

Finding the Fourth Proportional to 1,216,011.69, 1,677,865.19 and 763,098.57

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Solution

The fourth proportional to 1,216,011.69, 1,677,865.19 and 763,098.57 is: 1,052,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,011.69 : 1,677,865.19 = 763,098.57 : x
  2. Step 2: Convert to fraction form
    1,216,011.69/1,677,865.19 = 763,098.57/x
  3. Step 3: Cross multiply
    1,216,011.69x = 1,677,865.19 × 763,098.57
  4. Step 4: Simplify right side
    1,216,011.69x = 1,280,376,523,326.29
  5. Step 5: Solve for x
    x = 1,280,376,523,326.29/1,216,011.69
  6. Step 6: Final answer
    x = 1,052,931.10

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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.