Home / 819,108.78-1,130,375.66-456,555.98

Finding the Fourth Proportional to 819,108.78, 1,130,375.66 and 456,555.98

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Solution

The fourth proportional to 819,108.78, 1,130,375.66 and 456,555.98 is: 630,050.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,108.78 : 1,130,375.66 = 456,555.98 : x
  2. Step 2: Convert to fraction form
    819,108.78/1,130,375.66 = 456,555.98/x
  3. Step 3: Cross multiply
    819,108.78x = 1,130,375.66 × 456,555.98
  4. Step 4: Simplify right side
    819,108.78x = 516,079,759,284.79
  5. Step 5: Solve for x
    x = 516,079,759,284.79/819,108.78
  6. Step 6: Final answer
    x = 630,050.33

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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.