Home / 810,049.42-1,117,846.53-447,465.47

Finding the Fourth Proportional to 810,049.42, 1,117,846.53 and 447,465.47

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Solution

The fourth proportional to 810,049.42, 1,117,846.53 and 447,465.47 is: 617,490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,049.42 : 1,117,846.53 = 447,465.47 : x
  2. Step 2: Convert to fraction form
    810,049.42/1,117,846.53 = 447,465.47/x
  3. Step 3: Cross multiply
    810,049.42x = 1,117,846.53 × 447,465.47
  4. Step 4: Simplify right side
    810,049.42x = 500,197,725,728.94
  5. Step 5: Solve for x
    x = 500,197,725,728.94/810,049.42
  6. Step 6: Final answer
    x = 617,490.38

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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.