Home / 989,166.30-1,483,721.64-315,288

Finding the Fourth Proportional to 989,166.30, 1,483,721.64 and 315,288

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Solution

The fourth proportional to 989,166.30, 1,483,721.64 and 315,288 is: 472,923.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,166.30 : 1,483,721.64 = 315,288 : x
  2. Step 2: Convert to fraction form
    989,166.30/1,483,721.64 = 315,288/x
  3. Step 3: Cross multiply
    989,166.30x = 1,483,721.64 × 315,288
  4. Step 4: Simplify right side
    989,166.30x = 467,799,628,432.32
  5. Step 5: Solve for x
    x = 467,799,628,432.32/989,166.30
  6. Step 6: Final answer
    x = 472,923.14

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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.