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Finding the Fourth Proportional to 570,785.94, 788,214.06 and 427,296.87

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Solution

The fourth proportional to 570,785.94, 788,214.06 and 427,296.87 is: 590,066.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,785.94 : 788,214.06 = 427,296.87 : x
  2. Step 2: Convert to fraction form
    570,785.94/788,214.06 = 427,296.87/x
  3. Step 3: Cross multiply
    570,785.94x = 788,214.06 × 427,296.87
  4. Step 4: Simplify right side
    570,785.94x = 336,801,400,727.99
  5. Step 5: Solve for x
    x = 336,801,400,727.99/570,785.94
  6. Step 6: Final answer
    x = 590,066.04

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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.