Home / 803,106.78-1,108,237.59-480,843.42

Finding the Fourth Proportional to 803,106.78, 1,108,237.59 and 480,843.42

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Solution

The fourth proportional to 803,106.78, 1,108,237.59 and 480,843.42 is: 663,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,106.78 : 1,108,237.59 = 480,843.42 : x
  2. Step 2: Convert to fraction form
    803,106.78/1,108,237.59 = 480,843.42/x
  3. Step 3: Cross multiply
    803,106.78x = 1,108,237.59 × 480,843.42
  4. Step 4: Simplify right side
    803,106.78x = 532,888,752,948.16
  5. Step 5: Solve for x
    x = 532,888,752,948.16/803,106.78
  6. Step 6: Final answer
    x = 663,534.12

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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.