Home / 808,445.60-1,212,461.56-239,693.71

Finding the Fourth Proportional to 808,445.60, 1,212,461.56 and 239,693.71

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Solution

The fourth proportional to 808,445.60, 1,212,461.56 and 239,693.71 is: 359,479.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,445.60 : 1,212,461.56 = 239,693.71 : x
  2. Step 2: Convert to fraction form
    808,445.60/1,212,461.56 = 239,693.71/x
  3. Step 3: Cross multiply
    808,445.60x = 1,212,461.56 × 239,693.71
  4. Step 4: Simplify right side
    808,445.60x = 290,619,402,288.01
  5. Step 5: Solve for x
    x = 290,619,402,288.01/808,445.60
  6. Step 6: Final answer
    x = 359,479.23

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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.