Home / 742,168.50-1,024,194.51-402,636.75

Finding the Fourth Proportional to 742,168.50, 1,024,194.51 and 402,636.75

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Solution

The fourth proportional to 742,168.50, 1,024,194.51 and 402,636.75 is: 555,639.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,168.50 : 1,024,194.51 = 402,636.75 : x
  2. Step 2: Convert to fraction form
    742,168.50/1,024,194.51 = 402,636.75/x
  3. Step 3: Cross multiply
    742,168.50x = 1,024,194.51 × 402,636.75
  4. Step 4: Simplify right side
    742,168.50x = 412,378,345,033.51
  5. Step 5: Solve for x
    x = 412,378,345,033.51/742,168.50
  6. Step 6: Final answer
    x = 555,639.79

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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.