Home / 861,457.53-1,188,608.07-724,158.45

Finding the Fourth Proportional to 861,457.53, 1,188,608.07 and 724,158.45

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Solution

The fourth proportional to 861,457.53, 1,188,608.07 and 724,158.45 is: 999,167.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,457.53 : 1,188,608.07 = 724,158.45 : x
  2. Step 2: Convert to fraction form
    861,457.53/1,188,608.07 = 724,158.45/x
  3. Step 3: Cross multiply
    861,457.53x = 1,188,608.07 × 724,158.45
  4. Step 4: Simplify right side
    861,457.53x = 860,740,577,628.69
  5. Step 5: Solve for x
    x = 860,740,577,628.69/861,457.53
  6. Step 6: Final answer
    x = 999,167.74

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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.