Home / 989,349.12-1,484,132.64-315,273.60

Finding the Fourth Proportional to 989,349.12, 1,484,132.64 and 315,273.60

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Solution

The fourth proportional to 989,349.12, 1,484,132.64 and 315,273.60 is: 472,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,349.12 : 1,484,132.64 = 315,273.60 : x
  2. Step 2: Convert to fraction form
    989,349.12/1,484,132.64 = 315,273.60/x
  3. Step 3: Cross multiply
    989,349.12x = 1,484,132.64 × 315,273.60
  4. Step 4: Simplify right side
    989,349.12x = 467,907,840,290.30
  5. Step 5: Solve for x
    x = 467,907,840,290.30/989,349.12
  6. Step 6: Final answer
    x = 472,945.12

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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.