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Finding the Fourth Proportional to 510,479.64, 704,654.10 and 383,521.86

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Solution

The fourth proportional to 510,479.64, 704,654.10 and 383,521.86 is: 529,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,479.64 : 704,654.10 = 383,521.86 : x
  2. Step 2: Convert to fraction form
    510,479.64/704,654.10 = 383,521.86/x
  3. Step 3: Cross multiply
    510,479.64x = 704,654.10 × 383,521.86
  4. Step 4: Simplify right side
    510,479.64x = 270,250,251,088.63
  5. Step 5: Solve for x
    x = 270,250,251,088.63/510,479.64
  6. Step 6: Final answer
    x = 529,404.56

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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.