Home / 839,070.20-1,258,787.58-306,590.42

Finding the Fourth Proportional to 839,070.20, 1,258,787.58 and 306,590.42

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Solution

The fourth proportional to 839,070.20, 1,258,787.58 and 306,590.42 is: 459,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,070.20 : 1,258,787.58 = 306,590.42 : x
  2. Step 2: Convert to fraction form
    839,070.20/1,258,787.58 = 306,590.42/x
  3. Step 3: Cross multiply
    839,070.20x = 1,258,787.58 × 306,590.42
  4. Step 4: Simplify right side
    839,070.20x = 385,932,212,842.98
  5. Step 5: Solve for x
    x = 385,932,212,842.98/839,070.20
  6. Step 6: Final answer
    x = 459,952.23

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Double scale
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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.