Home / 1,110,905.40-1,666,358.10-1,040,921.40

Finding the Fourth Proportional to 1,110,905.40, 1,666,358.10 and 1,040,921.40

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Solution

The fourth proportional to 1,110,905.40, 1,666,358.10 and 1,040,921.40 is: 1,561,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,905.40 : 1,666,358.10 = 1,040,921.40 : x
  2. Step 2: Convert to fraction form
    1,110,905.40/1,666,358.10 = 1,040,921.40/x
  3. Step 3: Cross multiply
    1,110,905.40x = 1,666,358.10 × 1,040,921.40
  4. Step 4: Simplify right side
    1,110,905.40x = 1,734,547,806,353.34
  5. Step 5: Solve for x
    x = 1,734,547,806,353.34/1,110,905.40
  6. Step 6: Final answer
    x = 1,561,382.10

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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.