Home / 721,035.64-1,081,670.10-300,354.04

Finding the Fourth Proportional to 721,035.64, 1,081,670.10 and 300,354.04

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Solution

The fourth proportional to 721,035.64, 1,081,670.10 and 300,354.04 is: 450,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,035.64 : 1,081,670.10 = 300,354.04 : x
  2. Step 2: Convert to fraction form
    721,035.64/1,081,670.10 = 300,354.04/x
  3. Step 3: Cross multiply
    721,035.64x = 1,081,670.10 × 300,354.04
  4. Step 4: Simplify right side
    721,035.64x = 324,883,984,482.20
  5. Step 5: Solve for x
    x = 324,883,984,482.20/721,035.64
  6. Step 6: Final answer
    x = 450,579.65

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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.