Home / 887,191.70-1,330,787.55-550,612.40

Finding the Fourth Proportional to 887,191.70, 1,330,787.55 and 550,612.40

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Solution

The fourth proportional to 887,191.70, 1,330,787.55 and 550,612.40 is: 825,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,191.70 : 1,330,787.55 = 550,612.40 : x
  2. Step 2: Convert to fraction form
    887,191.70/1,330,787.55 = 550,612.40/x
  3. Step 3: Cross multiply
    887,191.70x = 1,330,787.55 × 550,612.40
  4. Step 4: Simplify right side
    887,191.70x = 732,748,126,795.62
  5. Step 5: Solve for x
    x = 732,748,126,795.62/887,191.70
  6. Step 6: Final answer
    x = 825,918.60

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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.