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Finding the Fourth Proportional to 554,453.20, 831,679.80 and 302,510.80

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Solution

The fourth proportional to 554,453.20, 831,679.80 and 302,510.80 is: 453,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,453.20 : 831,679.80 = 302,510.80 : x
  2. Step 2: Convert to fraction form
    554,453.20/831,679.80 = 302,510.80/x
  3. Step 3: Cross multiply
    554,453.20x = 831,679.80 × 302,510.80
  4. Step 4: Simplify right side
    554,453.20x = 251,592,121,641.84
  5. Step 5: Solve for x
    x = 251,592,121,641.84/554,453.20
  6. Step 6: Final answer
    x = 453,766.20

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Similar ratio
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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.