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Finding the Fourth Proportional to 555,622.50, 766,603.50 and 348,913.18

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Solution

The fourth proportional to 555,622.50, 766,603.50 and 348,913.18 is: 481,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,622.50 : 766,603.50 = 348,913.18 : x
  2. Step 2: Convert to fraction form
    555,622.50/766,603.50 = 348,913.18/x
  3. Step 3: Cross multiply
    555,622.50x = 766,603.50 × 348,913.18
  4. Step 4: Simplify right side
    555,622.50x = 267,478,064,984.13
  5. Step 5: Solve for x
    x = 267,478,064,984.13/555,622.50
  6. Step 6: Final answer
    x = 481,402.51

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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.