Home / 948,931.20-1,423,396.80-387,834.48

Finding the Fourth Proportional to 948,931.20, 1,423,396.80 and 387,834.48

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Solution

The fourth proportional to 948,931.20, 1,423,396.80 and 387,834.48 is: 581,751.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,931.20 : 1,423,396.80 = 387,834.48 : x
  2. Step 2: Convert to fraction form
    948,931.20/1,423,396.80 = 387,834.48/x
  3. Step 3: Cross multiply
    948,931.20x = 1,423,396.80 × 387,834.48
  4. Step 4: Simplify right side
    948,931.20x = 552,042,357,761.66
  5. Step 5: Solve for x
    x = 552,042,357,761.66/948,931.20
  6. Step 6: Final answer
    x = 581,751.72

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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.