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Finding the Fourth Proportional to 565,548.12, 780,466.14 and 310,910.04

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Solution

The fourth proportional to 565,548.12, 780,466.14 and 310,910.04 is: 429,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,548.12 : 780,466.14 = 310,910.04 : x
  2. Step 2: Convert to fraction form
    565,548.12/780,466.14 = 310,910.04/x
  3. Step 3: Cross multiply
    565,548.12x = 780,466.14 × 310,910.04
  4. Step 4: Simplify right side
    565,548.12x = 242,654,758,806.05
  5. Step 5: Solve for x
    x = 242,654,758,806.05/565,548.12
  6. Step 6: Final answer
    x = 429,061.21

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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.