Home / 1,262,812.20-1,894,234.71-421,363.95

Finding the Fourth Proportional to 1,262,812.20, 1,894,234.71 and 421,363.95

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Solution

The fourth proportional to 1,262,812.20, 1,894,234.71 and 421,363.95 is: 632,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,812.20 : 1,894,234.71 = 421,363.95 : x
  2. Step 2: Convert to fraction form
    1,262,812.20/1,894,234.71 = 421,363.95/x
  3. Step 3: Cross multiply
    1,262,812.20x = 1,894,234.71 × 421,363.95
  4. Step 4: Simplify right side
    1,262,812.20x = 798,162,219,632.71
  5. Step 5: Solve for x
    x = 798,162,219,632.71/1,262,812.20
  6. Step 6: Final answer
    x = 632,051.40

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Double scale
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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.