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Finding the Fourth Proportional to 671,934.60, 927,269.82 and 370,128.60

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Solution

The fourth proportional to 671,934.60, 927,269.82 and 370,128.60 is: 510,777.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,934.60 : 927,269.82 = 370,128.60 : x
  2. Step 2: Convert to fraction form
    671,934.60/927,269.82 = 370,128.60/x
  3. Step 3: Cross multiply
    671,934.60x = 927,269.82 × 370,128.60
  4. Step 4: Simplify right side
    671,934.60x = 343,209,080,298.85
  5. Step 5: Solve for x
    x = 343,209,080,298.85/671,934.60
  6. Step 6: Final answer
    x = 510,777.51

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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.