Home / 989,139.66-1,474,820.66-904,689.11

Finding the Fourth Proportional to 989,139.66, 1,474,820.66 and 904,689.11

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Solution

The fourth proportional to 989,139.66, 1,474,820.66 and 904,689.11 is: 1,348,903.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,139.66 : 1,474,820.66 = 904,689.11 : x
  2. Step 2: Convert to fraction form
    989,139.66/1,474,820.66 = 904,689.11/x
  3. Step 3: Cross multiply
    989,139.66x = 1,474,820.66 × 904,689.11
  4. Step 4: Simplify right side
    989,139.66x = 1,334,254,178,407.46
  5. Step 5: Solve for x
    x = 1,334,254,178,407.46/989,139.66
  6. Step 6: Final answer
    x = 1,348,903.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.