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Finding the Fourth Proportional to 592.75, 889.34 and 430.15

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Solution

The fourth proportional to 592.75, 889.34 and 430.15 is: 645.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.75 : 889.34 = 430.15 : x
  2. Step 2: Convert to fraction form
    592.75/889.34 = 430.15/x
  3. Step 3: Cross multiply
    592.75x = 889.34 × 430.15
  4. Step 4: Simplify right side
    592.75x = 382,549.60
  5. Step 5: Solve for x
    x = 382,549.60/592.75
  6. Step 6: Final answer
    x = 645.38

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Double scale
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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.