Home / 742,603.78-1,024,777.47-403,072.03

Finding the Fourth Proportional to 742,603.78, 1,024,777.47 and 403,072.03

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Solution

The fourth proportional to 742,603.78, 1,024,777.47 and 403,072.03 is: 556,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,603.78 : 1,024,777.47 = 403,072.03 : x
  2. Step 2: Convert to fraction form
    742,603.78/1,024,777.47 = 403,072.03/x
  3. Step 3: Cross multiply
    742,603.78x = 1,024,777.47 × 403,072.03
  4. Step 4: Simplify right side
    742,603.78x = 413,059,135,131.16
  5. Step 5: Solve for x
    x = 413,059,135,131.16/742,603.78
  6. Step 6: Final answer
    x = 556,230.85

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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.