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Finding the Fourth Proportional to 605,257.60, 907,886.40 and 538,902.40

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Solution

The fourth proportional to 605,257.60, 907,886.40 and 538,902.40 is: 808,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,257.60 : 907,886.40 = 538,902.40 : x
  2. Step 2: Convert to fraction form
    605,257.60/907,886.40 = 538,902.40/x
  3. Step 3: Cross multiply
    605,257.60x = 907,886.40 × 538,902.40
  4. Step 4: Simplify right side
    605,257.60x = 489,262,159,887.36
  5. Step 5: Solve for x
    x = 489,262,159,887.36/605,257.60
  6. Step 6: Final answer
    x = 808,353.60

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1.5x scale

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.