Home / 810,516.08-1,118,513.52-447,939.83

Finding the Fourth Proportional to 810,516.08, 1,118,513.52 and 447,939.83

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Solution

The fourth proportional to 810,516.08, 1,118,513.52 and 447,939.83 is: 618,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,516.08 : 1,118,513.52 = 447,939.83 : x
  2. Step 2: Convert to fraction form
    810,516.08/1,118,513.52 = 447,939.83/x
  3. Step 3: Cross multiply
    810,516.08x = 1,118,513.52 × 447,939.83
  4. Step 4: Simplify right side
    810,516.08x = 501,026,756,001.50
  5. Step 5: Solve for x
    x = 501,026,756,001.50/810,516.08
  6. Step 6: Final answer
    x = 618,157.70

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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.