Home / 983,107.84-1,474,660.40-309,248.32

Finding the Fourth Proportional to 983,107.84, 1,474,660.40 and 309,248.32

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Solution

The fourth proportional to 983,107.84, 1,474,660.40 and 309,248.32 is: 463,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,107.84 : 1,474,660.40 = 309,248.32 : x
  2. Step 2: Convert to fraction form
    983,107.84/1,474,660.40 = 309,248.32/x
  3. Step 3: Cross multiply
    983,107.84x = 1,474,660.40 × 309,248.32
  4. Step 4: Simplify right side
    983,107.84x = 456,036,251,270.53
  5. Step 5: Solve for x
    x = 456,036,251,270.53/983,107.84
  6. Step 6: Final answer
    x = 463,872.05

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Double scale
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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.