Home / 839,387.40-1,258,710.72-240,212.17

Finding the Fourth Proportional to 839,387.40, 1,258,710.72 and 240,212.17

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Solution

The fourth proportional to 839,387.40, 1,258,710.72 and 240,212.17 is: 360,212.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,387.40 : 1,258,710.72 = 240,212.17 : x
  2. Step 2: Convert to fraction form
    839,387.40/1,258,710.72 = 240,212.17/x
  3. Step 3: Cross multiply
    839,387.40x = 1,258,710.72 × 240,212.17
  4. Step 4: Simplify right side
    839,387.40x = 302,357,633,453.46
  5. Step 5: Solve for x
    x = 302,357,633,453.46/839,387.40
  6. Step 6: Final answer
    x = 360,212.26

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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.