Home / 1,387,259.79-2,080,890.69-376,381.66

Finding the Fourth Proportional to 1,387,259.79, 2,080,890.69 and 376,381.66

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Solution

The fourth proportional to 1,387,259.79, 2,080,890.69 and 376,381.66 is: 564,572.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,259.79 : 2,080,890.69 = 376,381.66 : x
  2. Step 2: Convert to fraction form
    1,387,259.79/2,080,890.69 = 376,381.66/x
  3. Step 3: Cross multiply
    1,387,259.79x = 2,080,890.69 × 376,381.66
  4. Step 4: Simplify right side
    1,387,259.79x = 783,209,092,180.75
  5. Step 5: Solve for x
    x = 783,209,092,180.75/1,387,259.79
  6. Step 6: Final answer
    x = 564,572.76

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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.