Home / 1,068,390.40-1,602,585.60-320,436.40

Finding the Fourth Proportional to 1,068,390.40, 1,602,585.60 and 320,436.40

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Solution

The fourth proportional to 1,068,390.40, 1,602,585.60 and 320,436.40 is: 480,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,390.40 : 1,602,585.60 = 320,436.40 : x
  2. Step 2: Convert to fraction form
    1,068,390.40/1,602,585.60 = 320,436.40/x
  3. Step 3: Cross multiply
    1,068,390.40x = 1,602,585.60 × 320,436.40
  4. Step 4: Simplify right side
    1,068,390.40x = 513,526,760,355.84
  5. Step 5: Solve for x
    x = 513,526,760,355.84/1,068,390.40
  6. Step 6: Final answer
    x = 480,654.60

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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.