Home / 751,106.08-1,035,961.28-521,663.64

Finding the Fourth Proportional to 751,106.08, 1,035,961.28 and 521,663.64

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Solution

The fourth proportional to 751,106.08, 1,035,961.28 and 521,663.64 is: 719,503.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,106.08 : 1,035,961.28 = 521,663.64 : x
  2. Step 2: Convert to fraction form
    751,106.08/1,035,961.28 = 521,663.64/x
  3. Step 3: Cross multiply
    751,106.08x = 1,035,961.28 × 521,663.64
  4. Step 4: Simplify right side
    751,106.08x = 540,423,332,223.86
  5. Step 5: Solve for x
    x = 540,423,332,223.86/751,106.08
  6. Step 6: Final answer
    x = 719,503.34

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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.