Home / 1,247,401.46-1,870,297.70-489,319.52

Finding the Fourth Proportional to 1,247,401.46, 1,870,297.70 and 489,319.52

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Solution

The fourth proportional to 1,247,401.46, 1,870,297.70 and 489,319.52 is: 733,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,401.46 : 1,870,297.70 = 489,319.52 : x
  2. Step 2: Convert to fraction form
    1,247,401.46/1,870,297.70 = 489,319.52/x
  3. Step 3: Cross multiply
    1,247,401.46x = 1,870,297.70 × 489,319.52
  4. Step 4: Simplify right side
    1,247,401.46x = 915,173,172,821.10
  5. Step 5: Solve for x
    x = 915,173,172,821.10/1,247,401.46
  6. Step 6: Final answer
    x = 733,663.70

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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.