Home / 810,243.67-1,118,158.81-447,690.89

Finding the Fourth Proportional to 810,243.67, 1,118,158.81 and 447,690.89

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Solution

The fourth proportional to 810,243.67, 1,118,158.81 and 447,690.89 is: 617,825.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,243.67 : 1,118,158.81 = 447,690.89 : x
  2. Step 2: Convert to fraction form
    810,243.67/1,118,158.81 = 447,690.89/x
  3. Step 3: Cross multiply
    810,243.67x = 1,118,158.81 × 447,690.89
  4. Step 4: Simplify right side
    810,243.67x = 500,589,512,810.24
  5. Step 5: Solve for x
    x = 500,589,512,810.24/810,243.67
  6. Step 6: Final answer
    x = 617,825.89

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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.