Home / 1,201,192.15-1,657,388.81-711,315.55

Finding the Fourth Proportional to 1,201,192.15, 1,657,388.81 and 711,315.55

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Solution

The fourth proportional to 1,201,192.15, 1,657,388.81 and 711,315.55 is: 981,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,192.15 : 1,657,388.81 = 711,315.55 : x
  2. Step 2: Convert to fraction form
    1,201,192.15/1,657,388.81 = 711,315.55/x
  3. Step 3: Cross multiply
    1,201,192.15x = 1,657,388.81 × 711,315.55
  4. Step 4: Simplify right side
    1,201,192.15x = 1,178,926,440,125.05
  5. Step 5: Solve for x
    x = 1,178,926,440,125.05/1,201,192.15
  6. Step 6: Final answer
    x = 981,463.66

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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.