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Finding the Fourth Proportional to 911,636.72, 1,258,058.26 and 503,735

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Solution

The fourth proportional to 911,636.72, 1,258,058.26 and 503,735 is: 695,154.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,636.72 : 1,258,058.26 = 503,735 : x
  2. Step 2: Convert to fraction form
    911,636.72/1,258,058.26 = 503,735/x
  3. Step 3: Cross multiply
    911,636.72x = 1,258,058.26 × 503,735
  4. Step 4: Simplify right side
    911,636.72x = 633,727,977,601.10
  5. Step 5: Solve for x
    x = 633,727,977,601.10/911,636.72
  6. Step 6: Final answer
    x = 695,154.07

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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.