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Finding the Fourth Proportional to 555,623, 766,604.19 and 348,913.68

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Solution

The fourth proportional to 555,623, 766,604.19 and 348,913.68 is: 481,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,623 : 766,604.19 = 348,913.68 : x
  2. Step 2: Convert to fraction form
    555,623/766,604.19 = 348,913.68/x
  3. Step 3: Cross multiply
    555,623x = 766,604.19 × 348,913.68
  4. Step 4: Simplify right side
    555,623x = 267,478,689,036.32
  5. Step 5: Solve for x
    x = 267,478,689,036.32/555,623
  6. Step 6: Final answer
    x = 481,403.20

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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.