Home / 721,543.62-1,081,981.82-406,000.50

Finding the Fourth Proportional to 721,543.62, 1,081,981.82 and 406,000.50

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Solution

The fourth proportional to 721,543.62, 1,081,981.82 and 406,000.50 is: 608,813.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,543.62 : 1,081,981.82 = 406,000.50 : x
  2. Step 2: Convert to fraction form
    721,543.62/1,081,981.82 = 406,000.50/x
  3. Step 3: Cross multiply
    721,543.62x = 1,081,981.82 × 406,000.50
  4. Step 4: Simplify right side
    721,543.62x = 439,285,159,910.91
  5. Step 5: Solve for x
    x = 439,285,159,910.91/721,543.62
  6. Step 6: Final answer
    x = 608,813.03

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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.