Home / 761,949.20-1,143,409.80-363,040.40

Finding the Fourth Proportional to 761,949.20, 1,143,409.80 and 363,040.40

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Solution

The fourth proportional to 761,949.20, 1,143,409.80 and 363,040.40 is: 544,792.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,949.20 : 1,143,409.80 = 363,040.40 : x
  2. Step 2: Convert to fraction form
    761,949.20/1,143,409.80 = 363,040.40/x
  3. Step 3: Cross multiply
    761,949.20x = 1,143,409.80 × 363,040.40
  4. Step 4: Simplify right side
    761,949.20x = 415,103,951,155.92
  5. Step 5: Solve for x
    x = 415,103,951,155.92/761,949.20
  6. Step 6: Final answer
    x = 544,792.16

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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.