Home / 434,701.30-651,748.20-257,116.90

Finding the Fourth Proportional to 434,701.30, 651,748.20 and 257,116.90

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Solution

The fourth proportional to 434,701.30, 651,748.20 and 257,116.90 is: 385,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,701.30 : 651,748.20 = 257,116.90 : x
  2. Step 2: Convert to fraction form
    434,701.30/651,748.20 = 257,116.90/x
  3. Step 3: Cross multiply
    434,701.30x = 651,748.20 × 257,116.90
  4. Step 4: Simplify right side
    434,701.30x = 167,575,476,764.58
  5. Step 5: Solve for x
    x = 167,575,476,764.58/434,701.30
  6. Step 6: Final answer
    x = 385,495.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.