Home / 1,538,864.81-2,123,743.34-850,521.89

Finding the Fourth Proportional to 1,538,864.81, 2,123,743.34 and 850,521.89

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Solution

The fourth proportional to 1,538,864.81, 2,123,743.34 and 850,521.89 is: 1,173,780.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,864.81 : 2,123,743.34 = 850,521.89 : x
  2. Step 2: Convert to fraction form
    1,538,864.81/2,123,743.34 = 850,521.89/x
  3. Step 3: Cross multiply
    1,538,864.81x = 2,123,743.34 × 850,521.89
  4. Step 4: Simplify right side
    1,538,864.81x = 1,806,290,190,117.13
  5. Step 5: Solve for x
    x = 1,806,290,190,117.13/1,538,864.81
  6. Step 6: Final answer
    x = 1,173,780.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.