Home / 911,897.13-1,258,378.83-503,977.89

Finding the Fourth Proportional to 911,897.13, 1,258,378.83 and 503,977.89

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Solution

The fourth proportional to 911,897.13, 1,258,378.83 and 503,977.89 is: 695,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,897.13 : 1,258,378.83 = 503,977.89 : x
  2. Step 2: Convert to fraction form
    911,897.13/1,258,378.83 = 503,977.89/x
  3. Step 3: Cross multiply
    911,897.13x = 1,258,378.83 × 503,977.89
  4. Step 4: Simplify right side
    911,897.13x = 634,195,107,564.07
  5. Step 5: Solve for x
    x = 634,195,107,564.07/911,897.13
  6. Step 6: Final answer
    x = 695,467.82

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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.