Home / 1,289,997.80-1,934,498.80-425,225.08

Finding the Fourth Proportional to 1,289,997.80, 1,934,498.80 and 425,225.08

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Solution

The fourth proportional to 1,289,997.80, 1,934,498.80 and 425,225.08 is: 637,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,997.80 : 1,934,498.80 = 425,225.08 : x
  2. Step 2: Convert to fraction form
    1,289,997.80/1,934,498.80 = 425,225.08/x
  3. Step 3: Cross multiply
    1,289,997.80x = 1,934,498.80 × 425,225.08
  4. Step 4: Simplify right side
    1,289,997.80x = 822,597,406,989.90
  5. Step 5: Solve for x
    x = 822,597,406,989.90/1,289,997.80
  6. Step 6: Final answer
    x = 637,673.50

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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.