Home / 1,220,632.61-1,684,405.53-676,736.64

Finding the Fourth Proportional to 1,220,632.61, 1,684,405.53 and 676,736.64

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Solution

The fourth proportional to 1,220,632.61, 1,684,405.53 and 676,736.64 is: 933,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,632.61 : 1,684,405.53 = 676,736.64 : x
  2. Step 2: Convert to fraction form
    1,220,632.61/1,684,405.53 = 676,736.64/x
  3. Step 3: Cross multiply
    1,220,632.61x = 1,684,405.53 × 676,736.64
  4. Step 4: Simplify right side
    1,220,632.61x = 1,139,898,938,769.62
  5. Step 5: Solve for x
    x = 1,139,898,938,769.62/1,220,632.61
  6. Step 6: Final answer
    x = 933,859.16

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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.