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Finding the Fourth Proportional to 634,276.28, 875,760.48 and 408,315.44

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Solution

The fourth proportional to 634,276.28, 875,760.48 and 408,315.44 is: 563,770.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,276.28 : 875,760.48 = 408,315.44 : x
  2. Step 2: Convert to fraction form
    634,276.28/875,760.48 = 408,315.44/x
  3. Step 3: Cross multiply
    634,276.28x = 875,760.48 × 408,315.44
  4. Step 4: Simplify right side
    634,276.28x = 357,586,525,725.81
  5. Step 5: Solve for x
    x = 357,586,525,725.81/634,276.28
  6. Step 6: Final answer
    x = 563,770.93

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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.