Home / 816,278.84-1,224,430.62-310,867.80

Finding the Fourth Proportional to 816,278.84, 1,224,430.62 and 310,867.80

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Solution

The fourth proportional to 816,278.84, 1,224,430.62 and 310,867.80 is: 466,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,278.84 : 1,224,430.62 = 310,867.80 : x
  2. Step 2: Convert to fraction form
    816,278.84/1,224,430.62 = 310,867.80/x
  3. Step 3: Cross multiply
    816,278.84x = 1,224,430.62 × 310,867.80
  4. Step 4: Simplify right side
    816,278.84x = 380,636,053,092.04
  5. Step 5: Solve for x
    x = 380,636,053,092.04/816,278.84
  6. Step 6: Final answer
    x = 466,306.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.