Home / 563,735.08-777,948.87-309,085.66

Finding the Fourth Proportional to 563,735.08, 777,948.87 and 309,085.66

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Solution

The fourth proportional to 563,735.08, 777,948.87 and 309,085.66 is: 426,535.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,735.08 : 777,948.87 = 309,085.66 : x
  2. Step 2: Convert to fraction form
    563,735.08/777,948.87 = 309,085.66/x
  3. Step 3: Cross multiply
    563,735.08x = 777,948.87 × 309,085.66
  4. Step 4: Simplify right side
    563,735.08x = 240,452,839,930.20
  5. Step 5: Solve for x
    x = 240,452,839,930.20/563,735.08
  6. Step 6: Final answer
    x = 426,535.17

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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.