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Finding the Fourth Proportional to 631,363.66, 871,267.53 and 344,885.02

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Solution

The fourth proportional to 631,363.66, 871,267.53 and 344,885.02 is: 475,933.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,363.66 : 871,267.53 = 344,885.02 : x
  2. Step 2: Convert to fraction form
    631,363.66/871,267.53 = 344,885.02/x
  3. Step 3: Cross multiply
    631,363.66x = 871,267.53 × 344,885.02
  4. Step 4: Simplify right side
    631,363.66x = 300,487,119,509.40
  5. Step 5: Solve for x
    x = 300,487,119,509.40/631,363.66
  6. Step 6: Final answer
    x = 475,933.50

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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.