Home / 1,515,080.72-2,090,750.28-836,008.40

Finding the Fourth Proportional to 1,515,080.72, 2,090,750.28 and 836,008.40

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Solution

The fourth proportional to 1,515,080.72, 2,090,750.28 and 836,008.40 is: 1,153,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,080.72 : 2,090,750.28 = 836,008.40 : x
  2. Step 2: Convert to fraction form
    1,515,080.72/2,090,750.28 = 836,008.40/x
  3. Step 3: Cross multiply
    1,515,080.72x = 2,090,750.28 × 836,008.40
  4. Step 4: Simplify right side
    1,515,080.72x = 1,747,884,796,382.35
  5. Step 5: Solve for x
    x = 1,747,884,796,382.35/1,515,080.72
  6. Step 6: Final answer
    x = 1,153,657.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.