Home / 786,901.80-1,180,644.30-254,440.20

Finding the Fourth Proportional to 786,901.80, 1,180,644.30 and 254,440.20

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Solution

The fourth proportional to 786,901.80, 1,180,644.30 and 254,440.20 is: 381,754.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,901.80 : 1,180,644.30 = 254,440.20 : x
  2. Step 2: Convert to fraction form
    786,901.80/1,180,644.30 = 254,440.20/x
  3. Step 3: Cross multiply
    786,901.80x = 1,180,644.30 × 254,440.20
  4. Step 4: Simplify right side
    786,901.80x = 300,403,371,820.86
  5. Step 5: Solve for x
    x = 300,403,371,820.86/786,901.80
  6. Step 6: Final answer
    x = 381,754.59

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Double scale
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1.5x scale

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.