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Finding the Fourth Proportional to 559,512.32, 772,117.28 and 304,865.60

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Solution

The fourth proportional to 559,512.32, 772,117.28 and 304,865.60 is: 420,709.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,512.32 : 772,117.28 = 304,865.60 : x
  2. Step 2: Convert to fraction form
    559,512.32/772,117.28 = 304,865.60/x
  3. Step 3: Cross multiply
    559,512.32x = 772,117.28 × 304,865.60
  4. Step 4: Simplify right side
    559,512.32x = 235,391,997,837.57
  5. Step 5: Solve for x
    x = 235,391,997,837.57/559,512.32
  6. Step 6: Final answer
    x = 420,709.23

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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.