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Finding the Fourth Proportional to 658,730.71, 909,048.99 and 356,924.71

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Solution

The fourth proportional to 658,730.71, 909,048.99 and 356,924.71 is: 492,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,730.71 : 909,048.99 = 356,924.71 : x
  2. Step 2: Convert to fraction form
    658,730.71/909,048.99 = 356,924.71/x
  3. Step 3: Cross multiply
    658,730.71x = 909,048.99 × 356,924.71
  4. Step 4: Simplify right side
    658,730.71x = 324,462,047,131.54
  5. Step 5: Solve for x
    x = 324,462,047,131.54/658,730.71
  6. Step 6: Final answer
    x = 492,556.43

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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.