Home / 1,007,020.40-1,510,530.60-408,001.10

Finding the Fourth Proportional to 1,007,020.40, 1,510,530.60 and 408,001.10

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Solution

The fourth proportional to 1,007,020.40, 1,510,530.60 and 408,001.10 is: 612,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,020.40 : 1,510,530.60 = 408,001.10 : x
  2. Step 2: Convert to fraction form
    1,007,020.40/1,510,530.60 = 408,001.10/x
  3. Step 3: Cross multiply
    1,007,020.40x = 1,510,530.60 × 408,001.10
  4. Step 4: Simplify right side
    1,007,020.40x = 616,298,146,383.66
  5. Step 5: Solve for x
    x = 616,298,146,383.66/1,007,020.40
  6. Step 6: Final answer
    x = 612,001.65

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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.