Home / 2,672,078.20-4,008,117.30-778,881.40

Finding the Fourth Proportional to 2,672,078.20, 4,008,117.30 and 778,881.40

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Solution

The fourth proportional to 2,672,078.20, 4,008,117.30 and 778,881.40 is: 1,168,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,078.20 : 4,008,117.30 = 778,881.40 : x
  2. Step 2: Convert to fraction form
    2,672,078.20/4,008,117.30 = 778,881.40/x
  3. Step 3: Cross multiply
    2,672,078.20x = 4,008,117.30 × 778,881.40
  4. Step 4: Simplify right side
    2,672,078.20x = 3,121,848,013,988.22
  5. Step 5: Solve for x
    x = 3,121,848,013,988.22/2,672,078.20
  6. Step 6: Final answer
    x = 1,168,322.10

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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.