Home / 989,820.75-1,365,956.28-537,111.75

Finding the Fourth Proportional to 989,820.75, 1,365,956.28 and 537,111.75

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Solution

The fourth proportional to 989,820.75, 1,365,956.28 and 537,111.75 is: 741,216.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,820.75 : 1,365,956.28 = 537,111.75 : x
  2. Step 2: Convert to fraction form
    989,820.75/1,365,956.28 = 537,111.75/x
  3. Step 3: Cross multiply
    989,820.75x = 1,365,956.28 × 537,111.75
  4. Step 4: Simplify right side
    989,820.75x = 733,671,167,974.29
  5. Step 5: Solve for x
    x = 733,671,167,974.29/989,820.75
  6. Step 6: Final answer
    x = 741,216.19

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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.