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Finding the Fourth Proportional to 660,151.80, 910,983.24 and 373,731.30

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Solution

The fourth proportional to 660,151.80, 910,983.24 and 373,731.30 is: 515,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,151.80 : 910,983.24 = 373,731.30 : x
  2. Step 2: Convert to fraction form
    660,151.80/910,983.24 = 373,731.30/x
  3. Step 3: Cross multiply
    660,151.80x = 910,983.24 × 373,731.30
  4. Step 4: Simplify right side
    660,151.80x = 340,462,950,563.41
  5. Step 5: Solve for x
    x = 340,462,950,563.41/660,151.80
  6. Step 6: Final answer
    x = 515,734.34

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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.