Home / 745,818.42-1,029,152.22-419,079.54

Finding the Fourth Proportional to 745,818.42, 1,029,152.22 and 419,079.54

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Solution

The fourth proportional to 745,818.42, 1,029,152.22 and 419,079.54 is: 578,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,818.42 : 1,029,152.22 = 419,079.54 : x
  2. Step 2: Convert to fraction form
    745,818.42/1,029,152.22 = 419,079.54/x
  3. Step 3: Cross multiply
    745,818.42x = 1,029,152.22 × 419,079.54
  4. Step 4: Simplify right side
    745,818.42x = 431,296,638,947.58
  5. Step 5: Solve for x
    x = 431,296,638,947.58/745,818.42
  6. Step 6: Final answer
    x = 578,286.39

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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.