Home / 778,534.39-1,167,240.86-478,394.76

Finding the Fourth Proportional to 778,534.39, 1,167,240.86 and 478,394.76

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Solution

The fourth proportional to 778,534.39, 1,167,240.86 and 478,394.76 is: 717,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,534.39 : 1,167,240.86 = 478,394.76 : x
  2. Step 2: Convert to fraction form
    778,534.39/1,167,240.86 = 478,394.76/x
  3. Step 3: Cross multiply
    778,534.39x = 1,167,240.86 × 478,394.76
  4. Step 4: Simplify right side
    778,534.39x = 558,401,915,195.98
  5. Step 5: Solve for x
    x = 558,401,915,195.98/778,534.39
  6. Step 6: Final answer
    x = 717,247.59

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1.5x scale

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.