Home / 1,345,386.56-2,013,958.55-871,128.32

Finding the Fourth Proportional to 1,345,386.56, 2,013,958.55 and 871,128.32

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Solution

The fourth proportional to 1,345,386.56, 2,013,958.55 and 871,128.32 is: 1,304,023.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,386.56 : 2,013,958.55 = 871,128.32 : x
  2. Step 2: Convert to fraction form
    1,345,386.56/2,013,958.55 = 871,128.32/x
  3. Step 3: Cross multiply
    1,345,386.56x = 2,013,958.55 × 871,128.32
  4. Step 4: Simplify right side
    1,345,386.56x = 1,754,416,320,319.16
  5. Step 5: Solve for x
    x = 1,754,416,320,319.16/1,345,386.56
  6. Step 6: Final answer
    x = 1,304,023.97

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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.