Home / 742,073.96-1,024,062.39-419,777.21

Finding the Fourth Proportional to 742,073.96, 1,024,062.39 and 419,777.21

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Solution

The fourth proportional to 742,073.96, 1,024,062.39 and 419,777.21 is: 579,292.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,073.96 : 1,024,062.39 = 419,777.21 : x
  2. Step 2: Convert to fraction form
    742,073.96/1,024,062.39 = 419,777.21/x
  3. Step 3: Cross multiply
    742,073.96x = 1,024,062.39 × 419,777.21
  4. Step 4: Simplify right side
    742,073.96x = 429,878,047,819.82
  5. Step 5: Solve for x
    x = 429,878,047,819.82/742,073.96
  6. Step 6: Final answer
    x = 579,292.73

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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.