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Finding the Fourth Proportional to 559,207.32, 771,714.88 and 304,558.28

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Solution

The fourth proportional to 559,207.32, 771,714.88 and 304,558.28 is: 420,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,207.32 : 771,714.88 = 304,558.28 : x
  2. Step 2: Convert to fraction form
    559,207.32/771,714.88 = 304,558.28/x
  3. Step 3: Cross multiply
    559,207.32x = 771,714.88 × 304,558.28
  4. Step 4: Simplify right side
    559,207.32x = 235,032,156,503.21
  5. Step 5: Solve for x
    x = 235,032,156,503.21/559,207.32
  6. Step 6: Final answer
    x = 420,295.21

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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.