Home / 1,090,605.40-1,635,908.10-970,336.60

Finding the Fourth Proportional to 1,090,605.40, 1,635,908.10 and 970,336.60

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Solution

The fourth proportional to 1,090,605.40, 1,635,908.10 and 970,336.60 is: 1,455,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,605.40 : 1,635,908.10 = 970,336.60 : x
  2. Step 2: Convert to fraction form
    1,090,605.40/1,635,908.10 = 970,336.60/x
  3. Step 3: Cross multiply
    1,090,605.40x = 1,635,908.10 × 970,336.60
  4. Step 4: Simplify right side
    1,090,605.40x = 1,587,381,503,666.46
  5. Step 5: Solve for x
    x = 1,587,381,503,666.46/1,090,605.40
  6. Step 6: Final answer
    x = 1,455,504.90

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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.