Home / 742,821.44-1,025,077.68-403,289.69

Finding the Fourth Proportional to 742,821.44, 1,025,077.68 and 403,289.69

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Solution

The fourth proportional to 742,821.44, 1,025,077.68 and 403,289.69 is: 556,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,821.44 : 1,025,077.68 = 403,289.69 : x
  2. Step 2: Convert to fraction form
    742,821.44/1,025,077.68 = 403,289.69/x
  3. Step 3: Cross multiply
    742,821.44x = 1,025,077.68 × 403,289.69
  4. Step 4: Simplify right side
    742,821.44x = 413,403,254,667.73
  5. Step 5: Solve for x
    x = 413,403,254,667.73/742,821.44
  6. Step 6: Final answer
    x = 556,531.13

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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.