Home / 839,432.79-1,259,394.89-270,803.07

Finding the Fourth Proportional to 839,432.79, 1,259,394.89 and 270,803.07

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Solution

The fourth proportional to 839,432.79, 1,259,394.89 and 270,803.07 is: 406,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,432.79 : 1,259,394.89 = 270,803.07 : x
  2. Step 2: Convert to fraction form
    839,432.79/1,259,394.89 = 270,803.07/x
  3. Step 3: Cross multiply
    839,432.79x = 1,259,394.89 × 270,803.07
  4. Step 4: Simplify right side
    839,432.79x = 341,048,001,200.30
  5. Step 5: Solve for x
    x = 341,048,001,200.30/839,432.79
  6. Step 6: Final answer
    x = 406,283.87

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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.