Home / 808,602.50-1,212,962.10-309,966.50

Finding the Fourth Proportional to 808,602.50, 1,212,962.10 and 309,966.50

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Solution

The fourth proportional to 808,602.50, 1,212,962.10 and 309,966.50 is: 464,972.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,602.50 : 1,212,962.10 = 309,966.50 : x
  2. Step 2: Convert to fraction form
    808,602.50/1,212,962.10 = 309,966.50/x
  3. Step 3: Cross multiply
    808,602.50x = 1,212,962.10 × 309,966.50
  4. Step 4: Simplify right side
    808,602.50x = 375,977,616,769.65
  5. Step 5: Solve for x
    x = 375,977,616,769.65/808,602.50
  6. Step 6: Final answer
    x = 464,972.12

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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.