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Finding the Fourth Proportional to 539,246.40, 808,480.80 and 352,363.20

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Solution

The fourth proportional to 539,246.40, 808,480.80 and 352,363.20 is: 528,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,246.40 : 808,480.80 = 352,363.20 : x
  2. Step 2: Convert to fraction form
    539,246.40/808,480.80 = 352,363.20/x
  3. Step 3: Cross multiply
    539,246.40x = 808,480.80 × 352,363.20
  4. Step 4: Simplify right side
    539,246.40x = 284,878,881,826.56
  5. Step 5: Solve for x
    x = 284,878,881,826.56/539,246.40
  6. Step 6: Final answer
    x = 528,290.74

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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.