Home / 742,738.28-1,114,182.90-256,357.13

Finding the Fourth Proportional to 742,738.28, 1,114,182.90 and 256,357.13

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Solution

The fourth proportional to 742,738.28, 1,114,182.90 and 256,357.13 is: 384,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,738.28 : 1,114,182.90 = 256,357.13 : x
  2. Step 2: Convert to fraction form
    742,738.28/1,114,182.90 = 256,357.13/x
  3. Step 3: Cross multiply
    742,738.28x = 1,114,182.90 × 256,357.13
  4. Step 4: Simplify right side
    742,738.28x = 285,628,724,968.16
  5. Step 5: Solve for x
    x = 285,628,724,968.16/742,738.28
  6. Step 6: Final answer
    x = 384,561.74

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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.