Home / 578,637.80-867,999.90-204,612.20

Finding the Fourth Proportional to 578,637.80, 867,999.90 and 204,612.20

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Solution

The fourth proportional to 578,637.80, 867,999.90 and 204,612.20 is: 306,933.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,637.80 : 867,999.90 = 204,612.20 : x
  2. Step 2: Convert to fraction form
    578,637.80/867,999.90 = 204,612.20/x
  3. Step 3: Cross multiply
    578,637.80x = 867,999.90 × 204,612.20
  4. Step 4: Simplify right side
    578,637.80x = 177,603,369,138.78
  5. Step 5: Solve for x
    x = 177,603,369,138.78/578,637.80
  6. Step 6: Final answer
    x = 306,933.58

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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.