Home / 703,845.64-971,295.06-397,917.40

Finding the Fourth Proportional to 703,845.64, 971,295.06 and 397,917.40

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Solution

The fourth proportional to 703,845.64, 971,295.06 and 397,917.40 is: 549,119.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,845.64 : 971,295.06 = 397,917.40 : x
  2. Step 2: Convert to fraction form
    703,845.64/971,295.06 = 397,917.40/x
  3. Step 3: Cross multiply
    703,845.64x = 971,295.06 × 397,917.40
  4. Step 4: Simplify right side
    703,845.64x = 386,495,204,908.04
  5. Step 5: Solve for x
    x = 386,495,204,908.04/703,845.64
  6. Step 6: Final answer
    x = 549,119.27

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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.