Home / 498,631.02-688,136.57-304,977.98

Finding the Fourth Proportional to 498,631.02, 688,136.57 and 304,977.98

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Solution

The fourth proportional to 498,631.02, 688,136.57 and 304,977.98 is: 420,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,631.02 : 688,136.57 = 304,977.98 : x
  2. Step 2: Convert to fraction form
    498,631.02/688,136.57 = 304,977.98/x
  3. Step 3: Cross multiply
    498,631.02x = 688,136.57 × 304,977.98
  4. Step 4: Simplify right side
    498,631.02x = 209,866,501,082.73
  5. Step 5: Solve for x
    x = 209,866,501,082.73/498,631.02
  6. Step 6: Final answer
    x = 420,885.37

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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.