Home / 730,021-1,094,311.80-256,374.20

Finding the Fourth Proportional to 730,021, 1,094,311.80 and 256,374.20

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Solution

The fourth proportional to 730,021, 1,094,311.80 and 256,374.20 is: 384,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,021 : 1,094,311.80 = 256,374.20 : x
  2. Step 2: Convert to fraction form
    730,021/1,094,311.80 = 256,374.20/x
  3. Step 3: Cross multiply
    730,021x = 1,094,311.80 × 256,374.20
  4. Step 4: Simplify right side
    730,021x = 280,553,312,275.56
  5. Step 5: Solve for x
    x = 280,553,312,275.56/730,021
  6. Step 6: Final answer
    x = 384,308.55

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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.