Home / 728,019.20-1,092,028.80-651,036.80

Finding the Fourth Proportional to 728,019.20, 1,092,028.80 and 651,036.80

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Solution

The fourth proportional to 728,019.20, 1,092,028.80 and 651,036.80 is: 976,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,019.20 : 1,092,028.80 = 651,036.80 : x
  2. Step 2: Convert to fraction form
    728,019.20/1,092,028.80 = 651,036.80/x
  3. Step 3: Cross multiply
    728,019.20x = 1,092,028.80 × 651,036.80
  4. Step 4: Simplify right side
    728,019.20x = 710,950,935,459.84
  5. Step 5: Solve for x
    x = 710,950,935,459.84/728,019.20
  6. Step 6: Final answer
    x = 976,555.20

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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.