Home / 869,209.34-1,303,623.86-442,292.36

Finding the Fourth Proportional to 869,209.34, 1,303,623.86 and 442,292.36

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Solution

The fourth proportional to 869,209.34, 1,303,623.86 and 442,292.36 is: 663,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,209.34 : 1,303,623.86 = 442,292.36 : x
  2. Step 2: Convert to fraction form
    869,209.34/1,303,623.86 = 442,292.36/x
  3. Step 3: Cross multiply
    869,209.34x = 1,303,623.86 × 442,292.36
  4. Step 4: Simplify right side
    869,209.34x = 576,582,864,862.13
  5. Step 5: Solve for x
    x = 576,582,864,862.13/869,209.34
  6. Step 6: Final answer
    x = 663,341.78

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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.