Home / 3,939,472.80-5,435,546.76-2,390,699.40

Finding the Fourth Proportional to 3,939,472.80, 5,435,546.76 and 2,390,699.40

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Solution

The fourth proportional to 3,939,472.80, 5,435,546.76 and 2,390,699.40 is: 3,298,603.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,472.80 : 5,435,546.76 = 2,390,699.40 : x
  2. Step 2: Convert to fraction form
    3,939,472.80/5,435,546.76 = 2,390,699.40/x
  3. Step 3: Cross multiply
    3,939,472.80x = 5,435,546.76 × 2,390,699.40
  4. Step 4: Simplify right side
    3,939,472.80x = 12,994,758,377,803.94
  5. Step 5: Solve for x
    x = 12,994,758,377,803.94/3,939,472.80
  6. Step 6: Final answer
    x = 3,298,603.40

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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.