Home / 778,405.20-1,166,686.20-329,125.20

Finding the Fourth Proportional to 778,405.20, 1,166,686.20 and 329,125.20

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Solution

The fourth proportional to 778,405.20, 1,166,686.20 and 329,125.20 is: 493,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,405.20 : 1,166,686.20 = 329,125.20 : x
  2. Step 2: Convert to fraction form
    778,405.20/1,166,686.20 = 329,125.20/x
  3. Step 3: Cross multiply
    778,405.20x = 1,166,686.20 × 329,125.20
  4. Step 4: Simplify right side
    778,405.20x = 383,985,828,912.24
  5. Step 5: Solve for x
    x = 383,985,828,912.24/778,405.20
  6. Step 6: Final answer
    x = 493,298.13

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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.