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Finding the Fourth Proportional to 704,360.46, 971,958.24 and 398,421.03

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Solution

The fourth proportional to 704,360.46, 971,958.24 and 398,421.03 is: 549,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,360.46 : 971,958.24 = 398,421.03 : x
  2. Step 2: Convert to fraction form
    704,360.46/971,958.24 = 398,421.03/x
  3. Step 3: Cross multiply
    704,360.46x = 971,958.24 × 398,421.03
  4. Step 4: Simplify right side
    704,360.46x = 387,248,603,097.79
  5. Step 5: Solve for x
    x = 387,248,603,097.79/704,360.46
  6. Step 6: Final answer
    x = 549,787.54

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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.