Home / 918,136-1,377,283.38-253,288

Finding the Fourth Proportional to 918,136, 1,377,283.38 and 253,288

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Solution

The fourth proportional to 918,136, 1,377,283.38 and 253,288 is: 379,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,136 : 1,377,283.38 = 253,288 : x
  2. Step 2: Convert to fraction form
    918,136/1,377,283.38 = 253,288/x
  3. Step 3: Cross multiply
    918,136x = 1,377,283.38 × 253,288
  4. Step 4: Simplify right side
    918,136x = 348,849,352,753.44
  5. Step 5: Solve for x
    x = 348,849,352,753.44/918,136
  6. Step 6: Final answer
    x = 379,953.90

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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.