Home / 745,819.42-1,029,153.60-419,080.54

Finding the Fourth Proportional to 745,819.42, 1,029,153.60 and 419,080.54

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Solution

The fourth proportional to 745,819.42, 1,029,153.60 and 419,080.54 is: 578,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,819.42 : 1,029,153.60 = 419,080.54 : x
  2. Step 2: Convert to fraction form
    745,819.42/1,029,153.60 = 419,080.54/x
  3. Step 3: Cross multiply
    745,819.42x = 1,029,153.60 × 419,080.54
  4. Step 4: Simplify right side
    745,819.42x = 431,298,246,430.94
  5. Step 5: Solve for x
    x = 431,298,246,430.94/745,819.42
  6. Step 6: Final answer
    x = 578,287.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.