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Finding the Fourth Proportional to 569,458.80, 785,890.20 and 327,771.12

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Solution

The fourth proportional to 569,458.80, 785,890.20 and 327,771.12 is: 452,345.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,458.80 : 785,890.20 = 327,771.12 : x
  2. Step 2: Convert to fraction form
    569,458.80/785,890.20 = 327,771.12/x
  3. Step 3: Cross multiply
    569,458.80x = 785,890.20 × 327,771.12
  4. Step 4: Simplify right side
    569,458.80x = 257,592,111,051.02
  5. Step 5: Solve for x
    x = 257,592,111,051.02/569,458.80
  6. Step 6: Final answer
    x = 452,345.47

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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.