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Finding the Fourth Proportional to 538,810.90, 808,216.35 and 349,854.10

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Solution

The fourth proportional to 538,810.90, 808,216.35 and 349,854.10 is: 524,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,810.90 : 808,216.35 = 349,854.10 : x
  2. Step 2: Convert to fraction form
    538,810.90/808,216.35 = 349,854.10/x
  3. Step 3: Cross multiply
    538,810.90x = 808,216.35 × 349,854.10
  4. Step 4: Simplify right side
    538,810.90x = 282,757,803,734.54
  5. Step 5: Solve for x
    x = 282,757,803,734.54/538,810.90
  6. Step 6: Final answer
    x = 524,781.15

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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.