Home / 811,829.79-1,120,343.38-525,847.64

Finding the Fourth Proportional to 811,829.79, 1,120,343.38 and 525,847.64

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Solution

The fourth proportional to 811,829.79, 1,120,343.38 and 525,847.64 is: 725,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,829.79 : 1,120,343.38 = 525,847.64 : x
  2. Step 2: Convert to fraction form
    811,829.79/1,120,343.38 = 525,847.64/x
  3. Step 3: Cross multiply
    811,829.79x = 1,120,343.38 × 525,847.64
  4. Step 4: Simplify right side
    811,829.79x = 589,129,922,362.62
  5. Step 5: Solve for x
    x = 589,129,922,362.62/811,829.79
  6. Step 6: Final answer
    x = 725,681.58

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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.