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Finding the Fourth Proportional to 384,713.76, 531,053.08 and 344,356.32

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Solution

The fourth proportional to 384,713.76, 531,053.08 and 344,356.32 is: 475,344.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,713.76 : 531,053.08 = 344,356.32 : x
  2. Step 2: Convert to fraction form
    384,713.76/531,053.08 = 344,356.32/x
  3. Step 3: Cross multiply
    384,713.76x = 531,053.08 × 344,356.32
  4. Step 4: Simplify right side
    384,713.76x = 182,871,484,353.47
  5. Step 5: Solve for x
    x = 182,871,484,353.47/384,713.76
  6. Step 6: Final answer
    x = 475,344.28

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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.