Home / 563,439.35-777,460.26-318,334.65

Finding the Fourth Proportional to 563,439.35, 777,460.26 and 318,334.65

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Solution

The fourth proportional to 563,439.35, 777,460.26 and 318,334.65 is: 439,253.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,439.35 : 777,460.26 = 318,334.65 : x
  2. Step 2: Convert to fraction form
    563,439.35/777,460.26 = 318,334.65/x
  3. Step 3: Cross multiply
    563,439.35x = 777,460.26 × 318,334.65
  4. Step 4: Simplify right side
    563,439.35x = 247,492,539,756.01
  5. Step 5: Solve for x
    x = 247,492,539,756.01/563,439.35
  6. Step 6: Final answer
    x = 439,253.21

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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.