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Finding the Fourth Proportional to 559,423.15, 772,003.87 and 304,774.33

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Solution

The fourth proportional to 559,423.15, 772,003.87 and 304,774.33 is: 420,588.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,423.15 : 772,003.87 = 304,774.33 : x
  2. Step 2: Convert to fraction form
    559,423.15/772,003.87 = 304,774.33/x
  3. Step 3: Cross multiply
    559,423.15x = 772,003.87 × 304,774.33
  4. Step 4: Simplify right side
    559,423.15x = 235,286,962,236.66
  5. Step 5: Solve for x
    x = 235,286,962,236.66/559,423.15
  6. Step 6: Final answer
    x = 420,588.53

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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.