Home / 1,186,138.59-1,636,873.48-662,849.20

Finding the Fourth Proportional to 1,186,138.59, 1,636,873.48 and 662,849.20

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Solution

The fourth proportional to 1,186,138.59, 1,636,873.48 and 662,849.20 is: 914,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,138.59 : 1,636,873.48 = 662,849.20 : x
  2. Step 2: Convert to fraction form
    1,186,138.59/1,636,873.48 = 662,849.20/x
  3. Step 3: Cross multiply
    1,186,138.59x = 1,636,873.48 × 662,849.20
  4. Step 4: Simplify right side
    1,186,138.59x = 1,085,000,266,657.93
  5. Step 5: Solve for x
    x = 1,085,000,266,657.93/1,186,138.59
  6. Step 6: Final answer
    x = 914,733.13

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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.