Home / 687,816.60-1,031,724.90-604,872.60

Finding the Fourth Proportional to 687,816.60, 1,031,724.90 and 604,872.60

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Solution

The fourth proportional to 687,816.60, 1,031,724.90 and 604,872.60 is: 907,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,816.60 : 1,031,724.90 = 604,872.60 : x
  2. Step 2: Convert to fraction form
    687,816.60/1,031,724.90 = 604,872.60/x
  3. Step 3: Cross multiply
    687,816.60x = 1,031,724.90 × 604,872.60
  4. Step 4: Simplify right side
    687,816.60x = 624,062,122,747.74
  5. Step 5: Solve for x
    x = 624,062,122,747.74/687,816.60
  6. Step 6: Final answer
    x = 907,308.90

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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.