Home / 893,515.72-1,338,348.94-419,490.76

Finding the Fourth Proportional to 893,515.72, 1,338,348.94 and 419,490.76

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Solution

The fourth proportional to 893,515.72, 1,338,348.94 and 419,490.76 is: 628,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,515.72 : 1,338,348.94 = 419,490.76 : x
  2. Step 2: Convert to fraction form
    893,515.72/1,338,348.94 = 419,490.76/x
  3. Step 3: Cross multiply
    893,515.72x = 1,338,348.94 × 419,490.76
  4. Step 4: Simplify right side
    893,515.72x = 561,425,013,985.79
  5. Step 5: Solve for x
    x = 561,425,013,985.79/893,515.72
  6. Step 6: Final answer
    x = 628,332.55

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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.