Home / 742,669.24-1,024,907.97-420,372.42

Finding the Fourth Proportional to 742,669.24, 1,024,907.97 and 420,372.42

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Solution

The fourth proportional to 742,669.24, 1,024,907.97 and 420,372.42 is: 580,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,669.24 : 1,024,907.97 = 420,372.42 : x
  2. Step 2: Convert to fraction form
    742,669.24/1,024,907.97 = 420,372.42/x
  3. Step 3: Cross multiply
    742,669.24x = 1,024,907.97 × 420,372.42
  4. Step 4: Simplify right side
    742,669.24x = 430,843,038,994.58
  5. Step 5: Solve for x
    x = 430,843,038,994.58/742,669.24
  6. Step 6: Final answer
    x = 580,127.76

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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.