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Finding the Fourth Proportional to 563,556, 777,707.46 and 308,908.92

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Solution

The fourth proportional to 563,556, 777,707.46 and 308,908.92 is: 426,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,556 : 777,707.46 = 308,908.92 : x
  2. Step 2: Convert to fraction form
    563,556/777,707.46 = 308,908.92/x
  3. Step 3: Cross multiply
    563,556x = 777,707.46 × 308,908.92
  4. Step 4: Simplify right side
    563,556x = 240,240,771,544.54
  5. Step 5: Solve for x
    x = 240,240,771,544.54/563,556
  6. Step 6: Final answer
    x = 426,294.41

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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.