Home / 989,831.70-1,484,747.55-740,999.70

Finding the Fourth Proportional to 989,831.70, 1,484,747.55 and 740,999.70

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Solution

The fourth proportional to 989,831.70, 1,484,747.55 and 740,999.70 is: 1,111,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,831.70 : 1,484,747.55 = 740,999.70 : x
  2. Step 2: Convert to fraction form
    989,831.70/1,484,747.55 = 740,999.70/x
  3. Step 3: Cross multiply
    989,831.70x = 1,484,747.55 × 740,999.70
  4. Step 4: Simplify right side
    989,831.70x = 1,100,197,489,125.73
  5. Step 5: Solve for x
    x = 1,100,197,489,125.73/989,831.70
  6. Step 6: Final answer
    x = 1,111,499.55

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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.