Home / 767,829.18-1,151,251.67-318,859.95

Finding the Fourth Proportional to 767,829.18, 1,151,251.67 and 318,859.95

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Solution

The fourth proportional to 767,829.18, 1,151,251.67 and 318,859.95 is: 478,085.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,829.18 : 1,151,251.67 = 318,859.95 : x
  2. Step 2: Convert to fraction form
    767,829.18/1,151,251.67 = 318,859.95/x
  3. Step 3: Cross multiply
    767,829.18x = 1,151,251.67 × 318,859.95
  4. Step 4: Simplify right side
    767,829.18x = 367,088,048,339.32
  5. Step 5: Solve for x
    x = 367,088,048,339.32/767,829.18
  6. Step 6: Final answer
    x = 478,085.57

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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.