Home / 1,284,781.32-1,772,975.25-711,810

Finding the Fourth Proportional to 1,284,781.32, 1,772,975.25 and 711,810

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Solution

The fourth proportional to 1,284,781.32, 1,772,975.25 and 711,810 is: 982,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,781.32 : 1,772,975.25 = 711,810 : x
  2. Step 2: Convert to fraction form
    1,284,781.32/1,772,975.25 = 711,810/x
  3. Step 3: Cross multiply
    1,284,781.32x = 1,772,975.25 × 711,810
  4. Step 4: Simplify right side
    1,284,781.32x = 1,262,021,512,702.50
  5. Step 5: Solve for x
    x = 1,262,021,512,702.50/1,284,781.32
  6. Step 6: Final answer
    x = 982,285.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.