Home / 678,160.80-1,017,411.30-299,153.70

Finding the Fourth Proportional to 678,160.80, 1,017,411.30 and 299,153.70

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Solution

The fourth proportional to 678,160.80, 1,017,411.30 and 299,153.70 is: 448,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,160.80 : 1,017,411.30 = 299,153.70 : x
  2. Step 2: Convert to fraction form
    678,160.80/1,017,411.30 = 299,153.70/x
  3. Step 3: Cross multiply
    678,160.80x = 1,017,411.30 × 299,153.70
  4. Step 4: Simplify right side
    678,160.80x = 304,362,354,816.81
  5. Step 5: Solve for x
    x = 304,362,354,816.81/678,160.80
  6. Step 6: Final answer
    x = 448,805.59

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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.