Home / 769,145.42-1,061,470.68-424,981.39

Finding the Fourth Proportional to 769,145.42, 1,061,470.68 and 424,981.39

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Solution

The fourth proportional to 769,145.42, 1,061,470.68 and 424,981.39 is: 586,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,145.42 : 1,061,470.68 = 424,981.39 : x
  2. Step 2: Convert to fraction form
    769,145.42/1,061,470.68 = 424,981.39/x
  3. Step 3: Cross multiply
    769,145.42x = 1,061,470.68 × 424,981.39
  4. Step 4: Simplify right side
    769,145.42x = 451,105,282,905.74
  5. Step 5: Solve for x
    x = 451,105,282,905.74/769,145.42
  6. Step 6: Final answer
    x = 586,501.94

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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.