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Finding the Fourth Proportional to 501,757.79, 692,430.93 and 272,317.06

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Solution

The fourth proportional to 501,757.79, 692,430.93 and 272,317.06 is: 375,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,757.79 : 692,430.93 = 272,317.06 : x
  2. Step 2: Convert to fraction form
    501,757.79/692,430.93 = 272,317.06/x
  3. Step 3: Cross multiply
    501,757.79x = 692,430.93 × 272,317.06
  4. Step 4: Simplify right side
    501,757.79x = 188,560,755,976.21
  5. Step 5: Solve for x
    x = 188,560,755,976.21/501,757.79
  6. Step 6: Final answer
    x = 375,800.35

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1.5x scale

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.