Home / 1,152,012.16-1,589,781.36-642,736

Finding the Fourth Proportional to 1,152,012.16, 1,589,781.36 and 642,736

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Solution

The fourth proportional to 1,152,012.16, 1,589,781.36 and 642,736 is: 886,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,012.16 : 1,589,781.36 = 642,736 : x
  2. Step 2: Convert to fraction form
    1,152,012.16/1,589,781.36 = 642,736/x
  3. Step 3: Cross multiply
    1,152,012.16x = 1,589,781.36 × 642,736
  4. Step 4: Simplify right side
    1,152,012.16x = 1,021,809,712,200.96
  5. Step 5: Solve for x
    x = 1,021,809,712,200.96/1,152,012.16
  6. Step 6: Final answer
    x = 886,978.23

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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.