Home / 703,844.64-971,293.68-397,916.40

Finding the Fourth Proportional to 703,844.64, 971,293.68 and 397,916.40

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Solution

The fourth proportional to 703,844.64, 971,293.68 and 397,916.40 is: 549,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,844.64 : 971,293.68 = 397,916.40 : x
  2. Step 2: Convert to fraction form
    703,844.64/971,293.68 = 397,916.40/x
  3. Step 3: Cross multiply
    703,844.64x = 971,293.68 × 397,916.40
  4. Step 4: Simplify right side
    703,844.64x = 386,493,684,488.35
  5. Step 5: Solve for x
    x = 386,493,684,488.35/703,844.64
  6. Step 6: Final answer
    x = 549,117.89

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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.