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Finding the Fourth Proportional to 631,748.24, 871,868.76 and 359,756.72

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Solution

The fourth proportional to 631,748.24, 871,868.76 and 359,756.72 is: 496,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,748.24 : 871,868.76 = 359,756.72 : x
  2. Step 2: Convert to fraction form
    631,748.24/871,868.76 = 359,756.72/x
  3. Step 3: Cross multiply
    631,748.24x = 871,868.76 × 359,756.72
  4. Step 4: Simplify right side
    631,748.24x = 313,660,645,368.07
  5. Step 5: Solve for x
    x = 313,660,645,368.07/631,748.24
  6. Step 6: Final answer
    x = 496,496.27

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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.