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Finding the Fourth Proportional to 867,805.60, 1,301,708.40 and 236,718.40

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Solution

The fourth proportional to 867,805.60, 1,301,708.40 and 236,718.40 is: 355,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,805.60 : 1,301,708.40 = 236,718.40 : x
  2. Step 2: Convert to fraction form
    867,805.60/1,301,708.40 = 236,718.40/x
  3. Step 3: Cross multiply
    867,805.60x = 1,301,708.40 × 236,718.40
  4. Step 4: Simplify right side
    867,805.60x = 308,138,329,714.56
  5. Step 5: Solve for x
    x = 308,138,329,714.56/867,805.60
  6. Step 6: Final answer
    x = 355,077.60

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Similar ratio
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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.