Home / 912,133.80-1,368,200.70-247,285.80

Finding the Fourth Proportional to 912,133.80, 1,368,200.70 and 247,285.80

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Solution

The fourth proportional to 912,133.80, 1,368,200.70 and 247,285.80 is: 370,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,133.80 : 1,368,200.70 = 247,285.80 : x
  2. Step 2: Convert to fraction form
    912,133.80/1,368,200.70 = 247,285.80/x
  3. Step 3: Cross multiply
    912,133.80x = 1,368,200.70 × 247,285.80
  4. Step 4: Simplify right side
    912,133.80x = 338,336,604,660.06
  5. Step 5: Solve for x
    x = 338,336,604,660.06/912,133.80
  6. Step 6: Final answer
    x = 370,928.70

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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.