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Finding the Fourth Proportional to 887,927.80, 1,330,360.80 and 413,640.40

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Solution

The fourth proportional to 887,927.80, 1,330,360.80 and 413,640.40 is: 619,747.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,927.80 : 1,330,360.80 = 413,640.40 : x
  2. Step 2: Convert to fraction form
    887,927.80/1,330,360.80 = 413,640.40/x
  3. Step 3: Cross multiply
    887,927.80x = 1,330,360.80 × 413,640.40
  4. Step 4: Simplify right side
    887,927.80x = 550,290,973,456.32
  5. Step 5: Solve for x
    x = 550,290,973,456.32/887,927.80
  6. Step 6: Final answer
    x = 619,747.43

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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.