Home / 565,623.19-780,540.06-310,972.42

Finding the Fourth Proportional to 565,623.19, 780,540.06 and 310,972.42

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Solution

The fourth proportional to 565,623.19, 780,540.06 and 310,972.42 is: 429,130.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,623.19 : 780,540.06 = 310,972.42 : x
  2. Step 2: Convert to fraction form
    565,623.19/780,540.06 = 310,972.42/x
  3. Step 3: Cross multiply
    565,623.19x = 780,540.06 × 310,972.42
  4. Step 4: Simplify right side
    565,623.19x = 242,726,431,365.15
  5. Step 5: Solve for x
    x = 242,726,431,365.15/565,623.19
  6. Step 6: Final answer
    x = 429,130.98

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1.5x scale

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.