Home / 703,913.81-971,388.38-397,984.91

Finding the Fourth Proportional to 703,913.81, 971,388.38 and 397,984.91

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Solution

The fourth proportional to 703,913.81, 971,388.38 and 397,984.91 is: 549,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,913.81 : 971,388.38 = 397,984.91 : x
  2. Step 2: Convert to fraction form
    703,913.81/971,388.38 = 397,984.91/x
  3. Step 3: Cross multiply
    703,913.81x = 971,388.38 × 397,984.91
  4. Step 4: Simplify right side
    703,913.81x = 386,597,910,142.48
  5. Step 5: Solve for x
    x = 386,597,910,142.48/703,913.81
  6. Step 6: Final answer
    x = 549,212.00

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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.