Home / 847,401.70-1,169,129.71-479,828.77

Finding the Fourth Proportional to 847,401.70, 1,169,129.71 and 479,828.77

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Solution

The fourth proportional to 847,401.70, 1,169,129.71 and 479,828.77 is: 662,002.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,401.70 : 1,169,129.71 = 479,828.77 : x
  2. Step 2: Convert to fraction form
    847,401.70/1,169,129.71 = 479,828.77/x
  3. Step 3: Cross multiply
    847,401.70x = 1,169,129.71 × 479,828.77
  4. Step 4: Simplify right side
    847,401.70x = 560,982,070,719.76
  5. Step 5: Solve for x
    x = 560,982,070,719.76/847,401.70
  6. Step 6: Final answer
    x = 662,002.53

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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.