Home / 810,777.66-1,118,865.78-448,210.86

Finding the Fourth Proportional to 810,777.66, 1,118,865.78 and 448,210.86

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Solution

The fourth proportional to 810,777.66, 1,118,865.78 and 448,210.86 is: 618,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,777.66 : 1,118,865.78 = 448,210.86 : x
  2. Step 2: Convert to fraction form
    810,777.66/1,118,865.78 = 448,210.86/x
  3. Step 3: Cross multiply
    810,777.66x = 1,118,865.78 × 448,210.86
  4. Step 4: Simplify right side
    810,777.66x = 501,487,793,478.37
  5. Step 5: Solve for x
    x = 501,487,793,478.37/810,777.66
  6. Step 6: Final answer
    x = 618,526.90

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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.