Home / 742,508.45-1,024,662.08-402,976.70

Finding the Fourth Proportional to 742,508.45, 1,024,662.08 and 402,976.70

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Solution

The fourth proportional to 742,508.45, 1,024,662.08 and 402,976.70 is: 556,108.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,508.45 : 1,024,662.08 = 402,976.70 : x
  2. Step 2: Convert to fraction form
    742,508.45/1,024,662.08 = 402,976.70/x
  3. Step 3: Cross multiply
    742,508.45x = 1,024,662.08 × 402,976.70
  4. Step 4: Simplify right side
    742,508.45x = 412,914,943,613.54
  5. Step 5: Solve for x
    x = 412,914,943,613.54/742,508.45
  6. Step 6: Final answer
    x = 556,108.07

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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.