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Finding the Fourth Proportional to 555,656.72, 766,806.64 and 301,008.92

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Solution

The fourth proportional to 555,656.72, 766,806.64 and 301,008.92 is: 415,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,656.72 : 766,806.64 = 301,008.92 : x
  2. Step 2: Convert to fraction form
    555,656.72/766,806.64 = 301,008.92/x
  3. Step 3: Cross multiply
    555,656.72x = 766,806.64 × 301,008.92
  4. Step 4: Simplify right side
    555,656.72x = 230,815,638,555.23
  5. Step 5: Solve for x
    x = 230,815,638,555.23/555,656.72
  6. Step 6: Final answer
    x = 415,392.51

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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.