Home / 911,903.85-1,258,388.13-503,984.61

Finding the Fourth Proportional to 911,903.85, 1,258,388.13 and 503,984.61

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Solution

The fourth proportional to 911,903.85, 1,258,388.13 and 503,984.61 is: 695,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,903.85 : 1,258,388.13 = 503,984.61 : x
  2. Step 2: Convert to fraction form
    911,903.85/1,258,388.13 = 503,984.61/x
  3. Step 3: Cross multiply
    911,903.85x = 1,258,388.13 × 503,984.61
  4. Step 4: Simplify right side
    911,903.85x = 634,208,250,926.68
  5. Step 5: Solve for x
    x = 634,208,250,926.68/911,903.85
  6. Step 6: Final answer
    x = 695,477.11

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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.