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Finding the Fourth Proportional to 413,928.28, 620,875.14 and 118,440.28

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Solution

The fourth proportional to 413,928.28, 620,875.14 and 118,440.28 is: 177,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,928.28 : 620,875.14 = 118,440.28 : x
  2. Step 2: Convert to fraction form
    413,928.28/620,875.14 = 118,440.28/x
  3. Step 3: Cross multiply
    413,928.28x = 620,875.14 × 118,440.28
  4. Step 4: Simplify right side
    413,928.28x = 73,536,625,426.64
  5. Step 5: Solve for x
    x = 73,536,625,426.64/413,928.28
  6. Step 6: Final answer
    x = 177,655.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.