Home / 774,729.88-1,069,123.19-425,878.41

Finding the Fourth Proportional to 774,729.88, 1,069,123.19 and 425,878.41

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Solution

The fourth proportional to 774,729.88, 1,069,123.19 and 425,878.41 is: 587,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,729.88 : 1,069,123.19 = 425,878.41 : x
  2. Step 2: Convert to fraction form
    774,729.88/1,069,123.19 = 425,878.41/x
  3. Step 3: Cross multiply
    774,729.88x = 1,069,123.19 × 425,878.41
  4. Step 4: Simplify right side
    774,729.88x = 455,316,484,251.33
  5. Step 5: Solve for x
    x = 455,316,484,251.33/774,729.88
  6. Step 6: Final answer
    x = 587,709.98

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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.