Home / 913,294.30-1,260,327.27-505,395.88

Finding the Fourth Proportional to 913,294.30, 1,260,327.27 and 505,395.88

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Solution

The fourth proportional to 913,294.30, 1,260,327.27 and 505,395.88 is: 697,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,294.30 : 1,260,327.27 = 505,395.88 : x
  2. Step 2: Convert to fraction form
    913,294.30/1,260,327.27 = 505,395.88/x
  3. Step 3: Cross multiply
    913,294.30x = 1,260,327.27 × 505,395.88
  4. Step 4: Simplify right side
    913,294.30x = 636,964,209,709.65
  5. Step 5: Solve for x
    x = 636,964,209,709.65/913,294.30
  6. Step 6: Final answer
    x = 697,435.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.