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Finding the Fourth Proportional to 617,118.23, 851,701.93 and 345,201.23

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Solution

The fourth proportional to 617,118.23, 851,701.93 and 345,201.23 is: 476,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,118.23 : 851,701.93 = 345,201.23 : x
  2. Step 2: Convert to fraction form
    617,118.23/851,701.93 = 345,201.23/x
  3. Step 3: Cross multiply
    617,118.23x = 851,701.93 × 345,201.23
  4. Step 4: Simplify right side
    617,118.23x = 294,008,549,570.86
  5. Step 5: Solve for x
    x = 294,008,549,570.86/617,118.23
  6. Step 6: Final answer
    x = 476,421.76

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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.