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Finding the Fourth Proportional to 565,254.38, 780,042.18 and 310,600.10

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Solution

The fourth proportional to 565,254.38, 780,042.18 and 310,600.10 is: 428,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,254.38 : 780,042.18 = 310,600.10 : x
  2. Step 2: Convert to fraction form
    565,254.38/780,042.18 = 310,600.10/x
  3. Step 3: Cross multiply
    565,254.38x = 780,042.18 × 310,600.10
  4. Step 4: Simplify right side
    565,254.38x = 242,281,179,112.22
  5. Step 5: Solve for x
    x = 242,281,179,112.22/565,254.38
  6. Step 6: Final answer
    x = 428,623.27

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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.