Home / 730,102.40-1,007,530.62-407,816.90

Finding the Fourth Proportional to 730,102.40, 1,007,530.62 and 407,816.90

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Solution

The fourth proportional to 730,102.40, 1,007,530.62 and 407,816.90 is: 562,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,102.40 : 1,007,530.62 = 407,816.90 : x
  2. Step 2: Convert to fraction form
    730,102.40/1,007,530.62 = 407,816.90/x
  3. Step 3: Cross multiply
    730,102.40x = 1,007,530.62 × 407,816.90
  4. Step 4: Simplify right side
    730,102.40x = 410,888,014,103.48
  5. Step 5: Solve for x
    x = 410,888,014,103.48/730,102.40
  6. Step 6: Final answer
    x = 562,781.35

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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.