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Finding the Fourth Proportional to 555,701.40, 832,385.70 and 306,091.80

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Solution

The fourth proportional to 555,701.40, 832,385.70 and 306,091.80 is: 458,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,701.40 : 832,385.70 = 306,091.80 : x
  2. Step 2: Convert to fraction form
    555,701.40/832,385.70 = 306,091.80/x
  3. Step 3: Cross multiply
    555,701.40x = 832,385.70 × 306,091.80
  4. Step 4: Simplify right side
    555,701.40x = 254,786,437,207.26
  5. Step 5: Solve for x
    x = 254,786,437,207.26/555,701.40
  6. Step 6: Final answer
    x = 458,495.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.