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Finding the Fourth Proportional to 660,260.70, 990,011.19 and 352,132.56

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Solution

The fourth proportional to 660,260.70, 990,011.19 and 352,132.56 is: 527,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,260.70 : 990,011.19 = 352,132.56 : x
  2. Step 2: Convert to fraction form
    660,260.70/990,011.19 = 352,132.56/x
  3. Step 3: Cross multiply
    660,260.70x = 990,011.19 × 352,132.56
  4. Step 4: Simplify right side
    660,260.70x = 348,615,174,763.35
  5. Step 5: Solve for x
    x = 348,615,174,763.35/660,260.70
  6. Step 6: Final answer
    x = 527,996.25

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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.