Home / 3,939,440.40-5,435,501.76-2,390,667.12

Finding the Fourth Proportional to 3,939,440.40, 5,435,501.76 and 2,390,667.12

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Solution

The fourth proportional to 3,939,440.40, 5,435,501.76 and 2,390,667.12 is: 3,298,558.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,440.40 : 5,435,501.76 = 2,390,667.12 : x
  2. Step 2: Convert to fraction form
    3,939,440.40/5,435,501.76 = 2,390,667.12/x
  3. Step 3: Cross multiply
    3,939,440.40x = 5,435,501.76 × 2,390,667.12
  4. Step 4: Simplify right side
    3,939,440.40x = 12,994,475,338,334.13
  5. Step 5: Solve for x
    x = 12,994,475,338,334.13/3,939,440.40
  6. Step 6: Final answer
    x = 3,298,558.68

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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.