Home / 866,749.65-1,300,301.79-298,056.90

Finding the Fourth Proportional to 866,749.65, 1,300,301.79 and 298,056.90

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Solution

The fourth proportional to 866,749.65, 1,300,301.79 and 298,056.90 is: 447,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,749.65 : 1,300,301.79 = 298,056.90 : x
  2. Step 2: Convert to fraction form
    866,749.65/1,300,301.79 = 298,056.90/x
  3. Step 3: Cross multiply
    866,749.65x = 1,300,301.79 × 298,056.90
  4. Step 4: Simplify right side
    866,749.65x = 387,563,920,591.85
  5. Step 5: Solve for x
    x = 387,563,920,591.85/866,749.65
  6. Step 6: Final answer
    x = 447,146.32

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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.