Home / 389,966.10-585,386.55-301,611.30

Finding the Fourth Proportional to 389,966.10, 585,386.55 and 301,611.30

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Solution

The fourth proportional to 389,966.10, 585,386.55 and 301,611.30 is: 452,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,966.10 : 585,386.55 = 301,611.30 : x
  2. Step 2: Convert to fraction form
    389,966.10/585,386.55 = 301,611.30/x
  3. Step 3: Cross multiply
    389,966.10x = 585,386.55 × 301,611.30
  4. Step 4: Simplify right side
    389,966.10x = 176,559,198,348.02
  5. Step 5: Solve for x
    x = 176,559,198,348.02/389,966.10
  6. Step 6: Final answer
    x = 452,755.25

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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.