Home / 989,140.66-1,474,822.15-904,690.11

Finding the Fourth Proportional to 989,140.66, 1,474,822.15 and 904,690.11

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Solution

The fourth proportional to 989,140.66, 1,474,822.15 and 904,690.11 is: 1,348,905.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,140.66 : 1,474,822.15 = 904,690.11 : x
  2. Step 2: Convert to fraction form
    989,140.66/1,474,822.15 = 904,690.11/x
  3. Step 3: Cross multiply
    989,140.66x = 1,474,822.15 × 904,690.11
  4. Step 4: Simplify right side
    989,140.66x = 1,334,257,013,113.94
  5. Step 5: Solve for x
    x = 1,334,257,013,113.94/989,140.66
  6. Step 6: Final answer
    x = 1,348,905.23

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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.