Home / 870,265.49-1,305,079.29-301,499.69

Finding the Fourth Proportional to 870,265.49, 1,305,079.29 and 301,499.69

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Solution

The fourth proportional to 870,265.49, 1,305,079.29 and 301,499.69 is: 452,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,265.49 : 1,305,079.29 = 301,499.69 : x
  2. Step 2: Convert to fraction form
    870,265.49/1,305,079.29 = 301,499.69/x
  3. Step 3: Cross multiply
    870,265.49x = 1,305,079.29 × 301,499.69
  4. Step 4: Simplify right side
    870,265.49x = 393,480,994,835.02
  5. Step 5: Solve for x
    x = 393,480,994,835.02/870,265.49
  6. Step 6: Final answer
    x = 452,139.03

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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.