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Finding the Fourth Proportional to 615,454.20, 922,403.70 and 299,230.20

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Solution

The fourth proportional to 615,454.20, 922,403.70 and 299,230.20 is: 448,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,454.20 : 922,403.70 = 299,230.20 : x
  2. Step 2: Convert to fraction form
    615,454.20/922,403.70 = 299,230.20/x
  3. Step 3: Cross multiply
    615,454.20x = 922,403.70 × 299,230.20
  4. Step 4: Simplify right side
    615,454.20x = 276,011,043,631.74
  5. Step 5: Solve for x
    x = 276,011,043,631.74/615,454.20
  6. Step 6: Final answer
    x = 448,467.24

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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.