Home / 761,426.94-1,142,142.99-192,807.78

Finding the Fourth Proportional to 761,426.94, 1,142,142.99 and 192,807.78

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Solution

The fourth proportional to 761,426.94, 1,142,142.99 and 192,807.78 is: 289,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,426.94 : 1,142,142.99 = 192,807.78 : x
  2. Step 2: Convert to fraction form
    761,426.94/1,142,142.99 = 192,807.78/x
  3. Step 3: Cross multiply
    761,426.94x = 1,142,142.99 × 192,807.78
  4. Step 4: Simplify right side
    761,426.94x = 220,214,054,344.46
  5. Step 5: Solve for x
    x = 220,214,054,344.46/761,426.94
  6. Step 6: Final answer
    x = 289,212.32

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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.