Home / 2,115,971.40-3,174,248.70-767,807.40

Finding the Fourth Proportional to 2,115,971.40, 3,174,248.70 and 767,807.40

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Solution

The fourth proportional to 2,115,971.40, 3,174,248.70 and 767,807.40 is: 1,151,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,971.40 : 3,174,248.70 = 767,807.40 : x
  2. Step 2: Convert to fraction form
    2,115,971.40/3,174,248.70 = 767,807.40/x
  3. Step 3: Cross multiply
    2,115,971.40x = 3,174,248.70 × 767,807.40
  4. Step 4: Simplify right side
    2,115,971.40x = 2,437,211,641,300.38
  5. Step 5: Solve for x
    x = 2,437,211,641,300.38/2,115,971.40
  6. Step 6: Final answer
    x = 1,151,816.91

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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.