Home / 989,117.39-1,364,982.77-536,408.39

Finding the Fourth Proportional to 989,117.39, 1,364,982.77 and 536,408.39

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Solution

The fourth proportional to 989,117.39, 1,364,982.77 and 536,408.39 is: 740,243.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,117.39 : 1,364,982.77 = 536,408.39 : x
  2. Step 2: Convert to fraction form
    989,117.39/1,364,982.77 = 536,408.39/x
  3. Step 3: Cross multiply
    989,117.39x = 1,364,982.77 × 536,408.39
  4. Step 4: Simplify right side
    989,117.39x = 732,188,207,351.40
  5. Step 5: Solve for x
    x = 732,188,207,351.40/989,117.39
  6. Step 6: Final answer
    x = 740,243.99

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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.