Home / 1,931,455.72-2,665,283.70-1,072,016.20

Finding the Fourth Proportional to 1,931,455.72, 2,665,283.70 and 1,072,016.20

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Solution

The fourth proportional to 1,931,455.72, 2,665,283.70 and 1,072,016.20 is: 1,479,312.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,455.72 : 2,665,283.70 = 1,072,016.20 : x
  2. Step 2: Convert to fraction form
    1,931,455.72/2,665,283.70 = 1,072,016.20/x
  3. Step 3: Cross multiply
    1,931,455.72x = 2,665,283.70 × 1,072,016.20
  4. Step 4: Simplify right side
    1,931,455.72x = 2,857,227,303,995.94
  5. Step 5: Solve for x
    x = 2,857,227,303,995.94/1,931,455.72
  6. Step 6: Final answer
    x = 1,479,312.87

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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.