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Finding the Fourth Proportional to 586.63, 874.72 and 579.45

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Solution

The fourth proportional to 586.63, 874.72 and 579.45 is: 864.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.63 : 874.72 = 579.45 : x
  2. Step 2: Convert to fraction form
    586.63/874.72 = 579.45/x
  3. Step 3: Cross multiply
    586.63x = 874.72 × 579.45
  4. Step 4: Simplify right side
    586.63x = 506,856.50
  5. Step 5: Solve for x
    x = 506,856.50/586.63
  6. Step 6: Final answer
    x = 864.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.