Home / 1,262,723.20-1,893,998.40-409,782.40

Finding the Fourth Proportional to 1,262,723.20, 1,893,998.40 and 409,782.40

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Solution

The fourth proportional to 1,262,723.20, 1,893,998.40 and 409,782.40 is: 614,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,723.20 : 1,893,998.40 = 409,782.40 : x
  2. Step 2: Convert to fraction form
    1,262,723.20/1,893,998.40 = 409,782.40/x
  3. Step 3: Cross multiply
    1,262,723.20x = 1,893,998.40 × 409,782.40
  4. Step 4: Simplify right side
    1,262,723.20x = 776,127,209,948.16
  5. Step 5: Solve for x
    x = 776,127,209,948.16/1,262,723.20
  6. Step 6: Final answer
    x = 614,645.56

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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.