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Finding the Fourth Proportional to 565,566.54, 780,431.67 and 310,912.26

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Solution

The fourth proportional to 565,566.54, 780,431.67 and 310,912.26 is: 429,031.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,566.54 : 780,431.67 = 310,912.26 : x
  2. Step 2: Convert to fraction form
    565,566.54/780,431.67 = 310,912.26/x
  3. Step 3: Cross multiply
    565,566.54x = 780,431.67 × 310,912.26
  4. Step 4: Simplify right side
    565,566.54x = 242,645,774,295.27
  5. Step 5: Solve for x
    x = 242,645,774,295.27/565,566.54
  6. Step 6: Final answer
    x = 429,031.35

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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.