Home / 578,565.93-798,360.20-320,436.11

Finding the Fourth Proportional to 578,565.93, 798,360.20 and 320,436.11

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Solution

The fourth proportional to 578,565.93, 798,360.20 and 320,436.11 is: 442,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,565.93 : 798,360.20 = 320,436.11 : x
  2. Step 2: Convert to fraction form
    578,565.93/798,360.20 = 320,436.11/x
  3. Step 3: Cross multiply
    578,565.93x = 798,360.20 × 320,436.11
  4. Step 4: Simplify right side
    578,565.93x = 255,823,431,272.84
  5. Step 5: Solve for x
    x = 255,823,431,272.84/578,565.93
  6. Step 6: Final answer
    x = 442,168.16

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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.