Home / 728,088.90-1,092,133.35-651,981.30

Finding the Fourth Proportional to 728,088.90, 1,092,133.35 and 651,981.30

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Solution

The fourth proportional to 728,088.90, 1,092,133.35 and 651,981.30 is: 977,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,088.90 : 1,092,133.35 = 651,981.30 : x
  2. Step 2: Convert to fraction form
    728,088.90/1,092,133.35 = 651,981.30/x
  3. Step 3: Cross multiply
    728,088.90x = 1,092,133.35 × 651,981.30
  4. Step 4: Simplify right side
    728,088.90x = 712,050,521,306.36
  5. Step 5: Solve for x
    x = 712,050,521,306.36/728,088.90
  6. Step 6: Final answer
    x = 977,971.95

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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.