Home / 742,891.48-1,025,194.34-403,359.74

Finding the Fourth Proportional to 742,891.48, 1,025,194.34 and 403,359.74

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Solution

The fourth proportional to 742,891.48, 1,025,194.34 and 403,359.74 is: 556,638.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,891.48 : 1,025,194.34 = 403,359.74 : x
  2. Step 2: Convert to fraction form
    742,891.48/1,025,194.34 = 403,359.74/x
  3. Step 3: Cross multiply
    742,891.48x = 1,025,194.34 × 403,359.74
  4. Step 4: Simplify right side
    742,891.48x = 413,522,122,431.87
  5. Step 5: Solve for x
    x = 413,522,122,431.87/742,891.48
  6. Step 6: Final answer
    x = 556,638.67

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.