Home / 912,959.20-1,369,438.80-344,252.80

Finding the Fourth Proportional to 912,959.20, 1,369,438.80 and 344,252.80

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Solution

The fourth proportional to 912,959.20, 1,369,438.80 and 344,252.80 is: 516,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,959.20 : 1,369,438.80 = 344,252.80 : x
  2. Step 2: Convert to fraction form
    912,959.20/1,369,438.80 = 344,252.80/x
  3. Step 3: Cross multiply
    912,959.20x = 1,369,438.80 × 344,252.80
  4. Step 4: Simplify right side
    912,959.20x = 471,433,141,328.64
  5. Step 5: Solve for x
    x = 471,433,141,328.64/912,959.20
  6. Step 6: Final answer
    x = 516,379.20

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1.5x scale

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.