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Finding the Fourth Proportional to 631,365.16, 871,269.60 and 344,886.52

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Solution

The fourth proportional to 631,365.16, 871,269.60 and 344,886.52 is: 475,935.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,365.16 : 871,269.60 = 344,886.52 : x
  2. Step 2: Convert to fraction form
    631,365.16/871,269.60 = 344,886.52/x
  3. Step 3: Cross multiply
    631,365.16x = 871,269.60 × 344,886.52
  4. Step 4: Simplify right side
    631,365.16x = 300,489,140,325.79
  5. Step 5: Solve for x
    x = 300,489,140,325.79/631,365.16
  6. Step 6: Final answer
    x = 475,935.57

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1.5x scale

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.