Home / 687,802.20-1,031,703.30-677,304.60

Finding the Fourth Proportional to 687,802.20, 1,031,703.30 and 677,304.60

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Solution

The fourth proportional to 687,802.20, 1,031,703.30 and 677,304.60 is: 1,015,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,802.20 : 1,031,703.30 = 677,304.60 : x
  2. Step 2: Convert to fraction form
    687,802.20/1,031,703.30 = 677,304.60/x
  3. Step 3: Cross multiply
    687,802.20x = 1,031,703.30 × 677,304.60
  4. Step 4: Simplify right side
    687,802.20x = 698,777,390,925.18
  5. Step 5: Solve for x
    x = 698,777,390,925.18/687,802.20
  6. Step 6: Final answer
    x = 1,015,956.90

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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.