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Finding the Fourth Proportional to 704,259.93, 971,900.70 and 398,330.34

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Solution

The fourth proportional to 704,259.93, 971,900.70 and 398,330.34 is: 549,708.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,259.93 : 971,900.70 = 398,330.34 : x
  2. Step 2: Convert to fraction form
    704,259.93/971,900.70 = 398,330.34/x
  3. Step 3: Cross multiply
    704,259.93x = 971,900.70 × 398,330.34
  4. Step 4: Simplify right side
    704,259.93x = 387,137,536,277.24
  5. Step 5: Solve for x
    x = 387,137,536,277.24/704,259.93
  6. Step 6: Final answer
    x = 549,708.31

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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.