Home / 1,406,135.79-2,109,206.75-508,211.55

Finding the Fourth Proportional to 1,406,135.79, 2,109,206.75 and 508,211.55

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Solution

The fourth proportional to 1,406,135.79, 2,109,206.75 and 508,211.55 is: 762,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,135.79 : 2,109,206.75 = 508,211.55 : x
  2. Step 2: Convert to fraction form
    1,406,135.79/2,109,206.75 = 508,211.55/x
  3. Step 3: Cross multiply
    1,406,135.79x = 2,109,206.75 × 508,211.55
  4. Step 4: Simplify right side
    1,406,135.79x = 1,071,923,229,146.90
  5. Step 5: Solve for x
    x = 1,071,923,229,146.90/1,406,135.79
  6. Step 6: Final answer
    x = 762,318.43

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Double scale
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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.