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Finding the Fourth Proportional to 706,995.87, 975,638.35 and 384,706.86

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Solution

The fourth proportional to 706,995.87, 975,638.35 and 384,706.86 is: 530,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,995.87 : 975,638.35 = 384,706.86 : x
  2. Step 2: Convert to fraction form
    706,995.87/975,638.35 = 384,706.86/x
  3. Step 3: Cross multiply
    706,995.87x = 975,638.35 × 384,706.86
  4. Step 4: Simplify right side
    706,995.87x = 375,334,766,124.08
  5. Step 5: Solve for x
    x = 375,334,766,124.08/706,995.87
  6. Step 6: Final answer
    x = 530,886.79

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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.