Home / 743,445.61-1,115,210.85-210,924.79

Finding the Fourth Proportional to 743,445.61, 1,115,210.85 and 210,924.79

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Solution

The fourth proportional to 743,445.61, 1,115,210.85 and 210,924.79 is: 316,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,445.61 : 1,115,210.85 = 210,924.79 : x
  2. Step 2: Convert to fraction form
    743,445.61/1,115,210.85 = 210,924.79/x
  3. Step 3: Cross multiply
    743,445.61x = 1,115,210.85 × 210,924.79
  4. Step 4: Simplify right side
    743,445.61x = 235,225,614,341.97
  5. Step 5: Solve for x
    x = 235,225,614,341.97/743,445.61
  6. Step 6: Final answer
    x = 316,399.22

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Double scale
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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.