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Finding the Fourth Proportional to 403,775.20, 605,662.80 and 373,362.40

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Solution

The fourth proportional to 403,775.20, 605,662.80 and 373,362.40 is: 560,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,775.20 : 605,662.80 = 373,362.40 : x
  2. Step 2: Convert to fraction form
    403,775.20/605,662.80 = 373,362.40/x
  3. Step 3: Cross multiply
    403,775.20x = 605,662.80 × 373,362.40
  4. Step 4: Simplify right side
    403,775.20x = 226,131,716,598.72
  5. Step 5: Solve for x
    x = 226,131,716,598.72/403,775.20
  6. Step 6: Final answer
    x = 560,043.60

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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.