Home / 859,820.36-1,186,457.82-497,189.48

Finding the Fourth Proportional to 859,820.36, 1,186,457.82 and 497,189.48

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Solution

The fourth proportional to 859,820.36, 1,186,457.82 and 497,189.48 is: 686,066.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,820.36 : 1,186,457.82 = 497,189.48 : x
  2. Step 2: Convert to fraction form
    859,820.36/1,186,457.82 = 497,189.48/x
  3. Step 3: Cross multiply
    859,820.36x = 1,186,457.82 × 497,189.48
  4. Step 4: Simplify right side
    859,820.36x = 589,894,346,567.73
  5. Step 5: Solve for x
    x = 589,894,346,567.73/859,820.36
  6. Step 6: Final answer
    x = 686,066.97

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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.