Home / 783,011.61-1,080,158.09-488,417.85

Finding the Fourth Proportional to 783,011.61, 1,080,158.09 and 488,417.85

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Solution

The fourth proportional to 783,011.61, 1,080,158.09 and 488,417.85 is: 673,768.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,011.61 : 1,080,158.09 = 488,417.85 : x
  2. Step 2: Convert to fraction form
    783,011.61/1,080,158.09 = 488,417.85/x
  3. Step 3: Cross multiply
    783,011.61x = 1,080,158.09 × 488,417.85
  4. Step 4: Simplify right side
    783,011.61x = 527,568,489,535.82
  5. Step 5: Solve for x
    x = 527,568,489,535.82/783,011.61
  6. Step 6: Final answer
    x = 673,768.41

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1.5x scale

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.