Home / 1,078,767.20-1,618,366.80-320,607.20

Finding the Fourth Proportional to 1,078,767.20, 1,618,366.80 and 320,607.20

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Solution

The fourth proportional to 1,078,767.20, 1,618,366.80 and 320,607.20 is: 480,974.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,767.20 : 1,618,366.80 = 320,607.20 : x
  2. Step 2: Convert to fraction form
    1,078,767.20/1,618,366.80 = 320,607.20/x
  3. Step 3: Cross multiply
    1,078,767.20x = 1,618,366.80 × 320,607.20
  4. Step 4: Simplify right side
    1,078,767.20x = 518,860,048,320.96
  5. Step 5: Solve for x
    x = 518,860,048,320.96/1,078,767.20
  6. Step 6: Final answer
    x = 480,974.99

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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.