Home / 703,998.05-971,457.23-398,059.43

Finding the Fourth Proportional to 703,998.05, 971,457.23 and 398,059.43

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Solution

The fourth proportional to 703,998.05, 971,457.23 and 398,059.43 is: 549,288.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,998.05 : 971,457.23 = 398,059.43 : x
  2. Step 2: Convert to fraction form
    703,998.05/971,457.23 = 398,059.43/x
  3. Step 3: Cross multiply
    703,998.05x = 971,457.23 × 398,059.43
  4. Step 4: Simplify right side
    703,998.05x = 386,697,707,381.04
  5. Step 5: Solve for x
    x = 386,697,707,381.04/703,998.05
  6. Step 6: Final answer
    x = 549,288.04

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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.