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Finding the Fourth Proportional to 575.99, 859.88 and 555.74

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Solution

The fourth proportional to 575.99, 859.88 and 555.74 is: 829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.99 : 859.88 = 555.74 : x
  2. Step 2: Convert to fraction form
    575.99/859.88 = 555.74/x
  3. Step 3: Cross multiply
    575.99x = 859.88 × 555.74
  4. Step 4: Simplify right side
    575.99x = 477,869.71
  5. Step 5: Solve for x
    x = 477,869.71/575.99
  6. Step 6: Final answer
    x = 829.65

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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.