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Finding the Fourth Proportional to 575.55, 856.76 and 569.34

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Solution

The fourth proportional to 575.55, 856.76 and 569.34 is: 847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.55 : 856.76 = 569.34 : x
  2. Step 2: Convert to fraction form
    575.55/856.76 = 569.34/x
  3. Step 3: Cross multiply
    575.55x = 856.76 × 569.34
  4. Step 4: Simplify right side
    575.55x = 487,784.89
  5. Step 5: Solve for x
    x = 487,784.89/575.55
  6. Step 6: Final answer
    x = 847.51

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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.