Home / 989,288.64-1,484,040.49-315,211.50

Finding the Fourth Proportional to 989,288.64, 1,484,040.49 and 315,211.50

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Solution

The fourth proportional to 989,288.64, 1,484,040.49 and 315,211.50 is: 472,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,288.64 : 1,484,040.49 = 315,211.50 : x
  2. Step 2: Convert to fraction form
    989,288.64/1,484,040.49 = 315,211.50/x
  3. Step 3: Cross multiply
    989,288.64x = 1,484,040.49 × 315,211.50
  4. Step 4: Simplify right side
    989,288.64x = 467,786,628,913.64
  5. Step 5: Solve for x
    x = 467,786,628,913.64/989,288.64
  6. Step 6: Final answer
    x = 472,851.51

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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.