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Finding the Fourth Proportional to 568,103.60, 784,267.04 and 353,312.87

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Solution

The fourth proportional to 568,103.60, 784,267.04 and 353,312.87 is: 487,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,103.60 : 784,267.04 = 353,312.87 : x
  2. Step 2: Convert to fraction form
    568,103.60/784,267.04 = 353,312.87/x
  3. Step 3: Cross multiply
    568,103.60x = 784,267.04 × 353,312.87
  4. Step 4: Simplify right side
    568,103.60x = 277,091,638,748.81
  5. Step 5: Solve for x
    x = 277,091,638,748.81/568,103.60
  6. Step 6: Final answer
    x = 487,748.43

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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.