Home / 989,020.33-1,483,754.25-315,140.02

Finding the Fourth Proportional to 989,020.33, 1,483,754.25 and 315,140.02

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Solution

The fourth proportional to 989,020.33, 1,483,754.25 and 315,140.02 is: 472,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,020.33 : 1,483,754.25 = 315,140.02 : x
  2. Step 2: Convert to fraction form
    989,020.33/1,483,754.25 = 315,140.02/x
  3. Step 3: Cross multiply
    989,020.33x = 1,483,754.25 × 315,140.02
  4. Step 4: Simplify right side
    989,020.33x = 467,590,341,492.47
  5. Step 5: Solve for x
    x = 467,590,341,492.47/989,020.33
  6. Step 6: Final answer
    x = 472,781.33

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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.