Home / 563,421.78-777,524.31-305,299.26

Finding the Fourth Proportional to 563,421.78, 777,524.31 and 305,299.26

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Solution

The fourth proportional to 563,421.78, 777,524.31 and 305,299.26 is: 421,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,421.78 : 777,524.31 = 305,299.26 : x
  2. Step 2: Convert to fraction form
    563,421.78/777,524.31 = 305,299.26/x
  3. Step 3: Cross multiply
    563,421.78x = 777,524.31 × 305,299.26
  4. Step 4: Simplify right side
    563,421.78x = 237,377,596,475.01
  5. Step 5: Solve for x
    x = 237,377,596,475.01/563,421.78
  6. Step 6: Final answer
    x = 421,314.20

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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.