Home / 811,857.08-1,120,914.06-506,055.80

Finding the Fourth Proportional to 811,857.08, 1,120,914.06 and 506,055.80

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Solution

The fourth proportional to 811,857.08, 1,120,914.06 and 506,055.80 is: 698,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,857.08 : 1,120,914.06 = 506,055.80 : x
  2. Step 2: Convert to fraction form
    811,857.08/1,120,914.06 = 506,055.80/x
  3. Step 3: Cross multiply
    811,857.08x = 1,120,914.06 × 506,055.80
  4. Step 4: Simplify right side
    811,857.08x = 567,245,061,364.55
  5. Step 5: Solve for x
    x = 567,245,061,364.55/811,857.08
  6. Step 6: Final answer
    x = 698,700.64

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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.