Home / 742,911.74-1,025,189.44-403,372.22

Finding the Fourth Proportional to 742,911.74, 1,025,189.44 and 403,372.22

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Solution

The fourth proportional to 742,911.74, 1,025,189.44 and 403,372.22 is: 556,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,911.74 : 1,025,189.44 = 403,372.22 : x
  2. Step 2: Convert to fraction form
    742,911.74/1,025,189.44 = 403,372.22/x
  3. Step 3: Cross multiply
    742,911.74x = 1,025,189.44 × 403,372.22
  4. Step 4: Simplify right side
    742,911.74x = 413,532,940,333.36
  5. Step 5: Solve for x
    x = 413,532,940,333.36/742,911.74
  6. Step 6: Final answer
    x = 556,638.05

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Double scale
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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.