Home / 1,007,109.40-1,510,664.10-408,090.10

Finding the Fourth Proportional to 1,007,109.40, 1,510,664.10 and 408,090.10

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Solution

The fourth proportional to 1,007,109.40, 1,510,664.10 and 408,090.10 is: 612,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,109.40 : 1,510,664.10 = 408,090.10 : x
  2. Step 2: Convert to fraction form
    1,007,109.40/1,510,664.10 = 408,090.10/x
  3. Step 3: Cross multiply
    1,007,109.40x = 1,510,664.10 × 408,090.10
  4. Step 4: Simplify right side
    1,007,109.40x = 616,487,063,635.41
  5. Step 5: Solve for x
    x = 616,487,063,635.41/1,007,109.40
  6. Step 6: Final answer
    x = 612,135.15

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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.