Home / 970,136.70-1,455,205.05-305,288.70

Finding the Fourth Proportional to 970,136.70, 1,455,205.05 and 305,288.70

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Solution

The fourth proportional to 970,136.70, 1,455,205.05 and 305,288.70 is: 457,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,136.70 : 1,455,205.05 = 305,288.70 : x
  2. Step 2: Convert to fraction form
    970,136.70/1,455,205.05 = 305,288.70/x
  3. Step 3: Cross multiply
    970,136.70x = 1,455,205.05 × 305,288.70
  4. Step 4: Simplify right side
    970,136.70x = 444,257,657,947.94
  5. Step 5: Solve for x
    x = 444,257,657,947.94/970,136.70
  6. Step 6: Final answer
    x = 457,933.05

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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.