Home / 989,035.25-1,364,868.65-536,326.61

Finding the Fourth Proportional to 989,035.25, 1,364,868.65 and 536,326.61

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Solution

The fourth proportional to 989,035.25, 1,364,868.65 and 536,326.61 is: 740,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,035.25 : 1,364,868.65 = 536,326.61 : x
  2. Step 2: Convert to fraction form
    989,035.25/1,364,868.65 = 536,326.61/x
  3. Step 3: Cross multiply
    989,035.25x = 1,364,868.65 × 536,326.61
  4. Step 4: Simplify right side
    989,035.25x = 732,015,376,149.78
  5. Step 5: Solve for x
    x = 732,015,376,149.78/989,035.25
  6. Step 6: Final answer
    x = 740,130.72

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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.