Home / 631,271.16-871,140.12-344,792.28

Finding the Fourth Proportional to 631,271.16, 871,140.12 and 344,792.28

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Solution

The fourth proportional to 631,271.16, 871,140.12 and 344,792.28 is: 475,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,271.16 : 871,140.12 = 344,792.28 : x
  2. Step 2: Convert to fraction form
    631,271.16/871,140.12 = 344,792.28/x
  3. Step 3: Cross multiply
    631,271.16x = 871,140.12 × 344,792.28
  4. Step 4: Simplify right side
    631,271.16x = 300,362,388,174.27
  5. Step 5: Solve for x
    x = 300,362,388,174.27/631,271.16
  6. Step 6: Final answer
    x = 475,805.66

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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.