Home / 742,845.45-1,025,110.80-403,313.70

Finding the Fourth Proportional to 742,845.45, 1,025,110.80 and 403,313.70

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Solution

The fourth proportional to 742,845.45, 1,025,110.80 and 403,313.70 is: 556,564.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,845.45 : 1,025,110.80 = 403,313.70 : x
  2. Step 2: Convert to fraction form
    742,845.45/1,025,110.80 = 403,313.70/x
  3. Step 3: Cross multiply
    742,845.45x = 1,025,110.80 × 403,313.70
  4. Step 4: Simplify right side
    742,845.45x = 413,441,229,657.96
  5. Step 5: Solve for x
    x = 413,441,229,657.96/742,845.45
  6. Step 6: Final answer
    x = 556,564.26

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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.