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Finding the Fourth Proportional to 565,751.37, 780,738.51 and 307,628.42

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Solution

The fourth proportional to 565,751.37, 780,738.51 and 307,628.42 is: 424,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,751.37 : 780,738.51 = 307,628.42 : x
  2. Step 2: Convert to fraction form
    565,751.37/780,738.51 = 307,628.42/x
  3. Step 3: Cross multiply
    565,751.37x = 780,738.51 × 307,628.42
  4. Step 4: Simplify right side
    565,751.37x = 240,177,354,264.45
  5. Step 5: Solve for x
    x = 240,177,354,264.45/565,751.37
  6. Step 6: Final answer
    x = 424,528.10

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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.