Home / 864,341.70-1,296,415.50-331,488.90

Finding the Fourth Proportional to 864,341.70, 1,296,415.50 and 331,488.90

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Solution

The fourth proportional to 864,341.70, 1,296,415.50 and 331,488.90 is: 497,196.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,341.70 : 1,296,415.50 = 331,488.90 : x
  2. Step 2: Convert to fraction form
    864,341.70/1,296,415.50 = 331,488.90/x
  3. Step 3: Cross multiply
    864,341.70x = 1,296,415.50 × 331,488.90
  4. Step 4: Simplify right side
    864,341.70x = 429,747,348,037.95
  5. Step 5: Solve for x
    x = 429,747,348,037.95/864,341.70
  6. Step 6: Final answer
    x = 497,196.13

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1.5x scale

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.