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Finding the Fourth Proportional to 994,900.12, 1,372,998.90 and 565,253.03

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Solution

The fourth proportional to 994,900.12, 1,372,998.90 and 565,253.03 is: 780,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,900.12 : 1,372,998.90 = 565,253.03 : x
  2. Step 2: Convert to fraction form
    994,900.12/1,372,998.90 = 565,253.03/x
  3. Step 3: Cross multiply
    994,900.12x = 1,372,998.90 × 565,253.03
  4. Step 4: Simplify right side
    994,900.12x = 776,091,793,963.86
  5. Step 5: Solve for x
    x = 776,091,793,963.86/994,900.12
  6. Step 6: Final answer
    x = 780,070.06

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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.