Home / 742,378.92-1,024,502.76-402,847.44

Finding the Fourth Proportional to 742,378.92, 1,024,502.76 and 402,847.44

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Solution

The fourth proportional to 742,378.92, 1,024,502.76 and 402,847.44 is: 555,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,378.92 : 1,024,502.76 = 402,847.44 : x
  2. Step 2: Convert to fraction form
    742,378.92/1,024,502.76 = 402,847.44/x
  3. Step 3: Cross multiply
    742,378.92x = 1,024,502.76 × 402,847.44
  4. Step 4: Simplify right side
    742,378.92x = 412,718,314,138.93
  5. Step 5: Solve for x
    x = 412,718,314,138.93/742,378.92
  6. Step 6: Final answer
    x = 555,940.24

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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.