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Finding the Fourth Proportional to 586,584.32, 879,876.16 and 212,606.72

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Solution

The fourth proportional to 586,584.32, 879,876.16 and 212,606.72 is: 318,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,584.32 : 879,876.16 = 212,606.72 : x
  2. Step 2: Convert to fraction form
    586,584.32/879,876.16 = 212,606.72/x
  3. Step 3: Cross multiply
    586,584.32x = 879,876.16 × 212,606.72
  4. Step 4: Simplify right side
    586,584.32x = 187,067,584,383.80
  5. Step 5: Solve for x
    x = 187,067,584,383.80/586,584.32
  6. Step 6: Final answer
    x = 318,909.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.