Home / 1,255,327.20-1,882,904.40-402,386.40

Finding the Fourth Proportional to 1,255,327.20, 1,882,904.40 and 402,386.40

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Solution

The fourth proportional to 1,255,327.20, 1,882,904.40 and 402,386.40 is: 603,551.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,327.20 : 1,882,904.40 = 402,386.40 : x
  2. Step 2: Convert to fraction form
    1,255,327.20/1,882,904.40 = 402,386.40/x
  3. Step 3: Cross multiply
    1,255,327.20x = 1,882,904.40 × 402,386.40
  4. Step 4: Simplify right side
    1,255,327.20x = 757,655,123,060.16
  5. Step 5: Solve for x
    x = 757,655,123,060.16/1,255,327.20
  6. Step 6: Final answer
    x = 603,551.91

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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.