Home / 1,148,180.79-1,722,269.52-390,100.98

Finding the Fourth Proportional to 1,148,180.79, 1,722,269.52 and 390,100.98

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Solution

The fourth proportional to 1,148,180.79, 1,722,269.52 and 390,100.98 is: 585,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,180.79 : 1,722,269.52 = 390,100.98 : x
  2. Step 2: Convert to fraction form
    1,148,180.79/1,722,269.52 = 390,100.98/x
  3. Step 3: Cross multiply
    1,148,180.79x = 1,722,269.52 × 390,100.98
  4. Step 4: Simplify right side
    1,148,180.79x = 671,859,027,576.13
  5. Step 5: Solve for x
    x = 671,859,027,576.13/1,148,180.79
  6. Step 6: Final answer
    x = 585,150.90

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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.