Home / 657,664.20-987,533.10-377,728.20

Finding the Fourth Proportional to 657,664.20, 987,533.10 and 377,728.20

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Solution

The fourth proportional to 657,664.20, 987,533.10 and 377,728.20 is: 567,187.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,664.20 : 987,533.10 = 377,728.20 : x
  2. Step 2: Convert to fraction form
    657,664.20/987,533.10 = 377,728.20/x
  3. Step 3: Cross multiply
    657,664.20x = 987,533.10 × 377,728.20
  4. Step 4: Simplify right side
    657,664.20x = 373,019,100,303.42
  5. Step 5: Solve for x
    x = 373,019,100,303.42/657,664.20
  6. Step 6: Final answer
    x = 567,187.78

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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.