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Finding the Fourth Proportional to 614,671.70, 922,007.55 and 447,366.20

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Solution

The fourth proportional to 614,671.70, 922,007.55 and 447,366.20 is: 671,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,671.70 : 922,007.55 = 447,366.20 : x
  2. Step 2: Convert to fraction form
    614,671.70/922,007.55 = 447,366.20/x
  3. Step 3: Cross multiply
    614,671.70x = 922,007.55 × 447,366.20
  4. Step 4: Simplify right side
    614,671.70x = 412,475,014,014.81
  5. Step 5: Solve for x
    x = 412,475,014,014.81/614,671.70
  6. Step 6: Final answer
    x = 671,049.30

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Similar ratio
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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.