Home / 563,934.50-778,278.81-309,334.89

Finding the Fourth Proportional to 563,934.50, 778,278.81 and 309,334.89

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Solution

The fourth proportional to 563,934.50, 778,278.81 and 309,334.89 is: 426,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,934.50 : 778,278.81 = 309,334.89 : x
  2. Step 2: Convert to fraction form
    563,934.50/778,278.81 = 309,334.89/x
  3. Step 3: Cross multiply
    563,934.50x = 778,278.81 × 309,334.89
  4. Step 4: Simplify right side
    563,934.50x = 240,748,790,080.68
  5. Step 5: Solve for x
    x = 240,748,790,080.68/563,934.50
  6. Step 6: Final answer
    x = 426,909.14

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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.