Home / 728,712,328.90-1,093,068,493.35-658,420,399.30

Finding the Fourth Proportional to 728,712,328.90, 1,093,068,493.35 and 658,420,399.30

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Solution

The fourth proportional to 728,712,328.90, 1,093,068,493.35 and 658,420,399.30 is: 987,630,598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,712,328.90 : 1,093,068,493.35 = 658,420,399.30 : x
  2. Step 2: Convert to fraction form
    728,712,328.90/1,093,068,493.35 = 658,420,399.30/x
  3. Step 3: Cross multiply
    728,712,328.90x = 1,093,068,493.35 × 658,420,399.30
  4. Step 4: Simplify right side
    728,712,328.90x = 719,698,593,853,756,288
  5. Step 5: Solve for x
    x = 719,698,593,853,756,288/728,712,328.90
  6. Step 6: Final answer
    x = 987,630,598.95

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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.