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Finding the Fourth Proportional to 452,908.20, 679,362.30 and 403,919.40

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Solution

The fourth proportional to 452,908.20, 679,362.30 and 403,919.40 is: 605,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,908.20 : 679,362.30 = 403,919.40 : x
  2. Step 2: Convert to fraction form
    452,908.20/679,362.30 = 403,919.40/x
  3. Step 3: Cross multiply
    452,908.20x = 679,362.30 × 403,919.40
  4. Step 4: Simplify right side
    452,908.20x = 274,407,612,598.62
  5. Step 5: Solve for x
    x = 274,407,612,598.62/452,908.20
  6. Step 6: Final answer
    x = 605,879.10

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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.