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Finding the Fourth Proportional to 554,008.58, 764,592.59 and 321,486.74

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Solution

The fourth proportional to 554,008.58, 764,592.59 and 321,486.74 is: 443,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,008.58 : 764,592.59 = 321,486.74 : x
  2. Step 2: Convert to fraction form
    554,008.58/764,592.59 = 321,486.74/x
  3. Step 3: Cross multiply
    554,008.58x = 764,592.59 × 321,486.74
  4. Step 4: Simplify right side
    554,008.58x = 245,806,379,187.26
  5. Step 5: Solve for x
    x = 245,806,379,187.26/554,008.58
  6. Step 6: Final answer
    x = 443,686.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.