Home / 742,817.86-1,025,090.34-403,278.82

Finding the Fourth Proportional to 742,817.86, 1,025,090.34 and 403,278.82

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Solution

The fourth proportional to 742,817.86, 1,025,090.34 and 403,278.82 is: 556,525.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,817.86 : 1,025,090.34 = 403,278.82 : x
  2. Step 2: Convert to fraction form
    742,817.86/1,025,090.34 = 403,278.82/x
  3. Step 3: Cross multiply
    742,817.86x = 1,025,090.34 × 403,278.82
  4. Step 4: Simplify right side
    742,817.86x = 413,397,222,708.60
  5. Step 5: Solve for x
    x = 413,397,222,708.60/742,817.86
  6. Step 6: Final answer
    x = 556,525.69

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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.