Home / 989,853.12-1,365,998.40-537,144.12

Finding the Fourth Proportional to 989,853.12, 1,365,998.40 and 537,144.12

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Solution

The fourth proportional to 989,853.12, 1,365,998.40 and 537,144.12 is: 741,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,853.12 : 1,365,998.40 = 537,144.12 : x
  2. Step 2: Convert to fraction form
    989,853.12/1,365,998.40 = 537,144.12/x
  3. Step 3: Cross multiply
    989,853.12x = 1,365,998.40 × 537,144.12
  4. Step 4: Simplify right side
    989,853.12x = 733,738,008,489.41
  5. Step 5: Solve for x
    x = 733,738,008,489.41/989,853.12
  6. Step 6: Final answer
    x = 741,259.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.