Home / 742,489.84-1,113,556.22-342,746.60

Finding the Fourth Proportional to 742,489.84, 1,113,556.22 and 342,746.60

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Solution

The fourth proportional to 742,489.84, 1,113,556.22 and 342,746.60 is: 514,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,489.84 : 1,113,556.22 = 342,746.60 : x
  2. Step 2: Convert to fraction form
    742,489.84/1,113,556.22 = 342,746.60/x
  3. Step 3: Cross multiply
    742,489.84x = 1,113,556.22 × 342,746.60
  4. Step 4: Simplify right side
    742,489.84x = 381,667,606,600.12
  5. Step 5: Solve for x
    x = 381,667,606,600.12/742,489.84
  6. Step 6: Final answer
    x = 514,037.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.