Home / 843,230.40-1,264,408.20-310,477.20

Finding the Fourth Proportional to 843,230.40, 1,264,408.20 and 310,477.20

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Solution

The fourth proportional to 843,230.40, 1,264,408.20 and 310,477.20 is: 465,554.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,230.40 : 1,264,408.20 = 310,477.20 : x
  2. Step 2: Convert to fraction form
    843,230.40/1,264,408.20 = 310,477.20/x
  3. Step 3: Cross multiply
    843,230.40x = 1,264,408.20 × 310,477.20
  4. Step 4: Simplify right side
    843,230.40x = 392,569,917,593.04
  5. Step 5: Solve for x
    x = 392,569,917,593.04/843,230.40
  6. Step 6: Final answer
    x = 465,554.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.