Home / 847,121.40-1,169,132.86-484,494.93

Finding the Fourth Proportional to 847,121.40, 1,169,132.86 and 484,494.93

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Solution

The fourth proportional to 847,121.40, 1,169,132.86 and 484,494.93 is: 668,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,121.40 : 1,169,132.86 = 484,494.93 : x
  2. Step 2: Convert to fraction form
    847,121.40/1,169,132.86 = 484,494.93/x
  3. Step 3: Cross multiply
    847,121.40x = 1,169,132.86 × 484,494.93
  4. Step 4: Simplify right side
    847,121.40x = 566,438,943,166.40
  5. Step 5: Solve for x
    x = 566,438,943,166.40/847,121.40
  6. Step 6: Final answer
    x = 668,663.24

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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.