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Finding the Fourth Proportional to 518,807.84, 715,956 and 292,453.34

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Solution

The fourth proportional to 518,807.84, 715,956 and 292,453.34 is: 403,586.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,807.84 : 715,956 = 292,453.34 : x
  2. Step 2: Convert to fraction form
    518,807.84/715,956 = 292,453.34/x
  3. Step 3: Cross multiply
    518,807.84x = 715,956 × 292,453.34
  4. Step 4: Simplify right side
    518,807.84x = 209,383,723,493.04
  5. Step 5: Solve for x
    x = 209,383,723,493.04/518,807.84
  6. Step 6: Final answer
    x = 403,586.27

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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.