Home / 912,543.36-1,259,112-510,121.60

Finding the Fourth Proportional to 912,543.36, 1,259,112 and 510,121.60

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Solution

The fourth proportional to 912,543.36, 1,259,112 and 510,121.60 is: 703,857.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,543.36 : 1,259,112 = 510,121.60 : x
  2. Step 2: Convert to fraction form
    912,543.36/1,259,112 = 510,121.60/x
  3. Step 3: Cross multiply
    912,543.36x = 1,259,112 × 510,121.60
  4. Step 4: Simplify right side
    912,543.36x = 642,300,228,019.20
  5. Step 5: Solve for x
    x = 642,300,228,019.20/912,543.36
  6. Step 6: Final answer
    x = 703,857.22

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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.