Home / 2,672,386.40-4,008,190.80-778,930.40

Finding the Fourth Proportional to 2,672,386.40, 4,008,190.80 and 778,930.40

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Solution

The fourth proportional to 2,672,386.40, 4,008,190.80 and 778,930.40 is: 1,168,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,386.40 : 4,008,190.80 = 778,930.40 : x
  2. Step 2: Convert to fraction form
    2,672,386.40/4,008,190.80 = 778,930.40/x
  3. Step 3: Cross multiply
    2,672,386.40x = 4,008,190.80 × 778,930.40
  4. Step 4: Simplify right side
    2,672,386.40x = 3,122,101,663,120.32
  5. Step 5: Solve for x
    x = 3,122,101,663,120.32/2,672,386.40
  6. Step 6: Final answer
    x = 1,168,282.28

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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.