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Finding the Fourth Proportional to 605,257.60, 907,886.40 and 310,345.60

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Solution

The fourth proportional to 605,257.60, 907,886.40 and 310,345.60 is: 465,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,257.60 : 907,886.40 = 310,345.60 : x
  2. Step 2: Convert to fraction form
    605,257.60/907,886.40 = 310,345.60/x
  3. Step 3: Cross multiply
    605,257.60x = 907,886.40 × 310,345.60
  4. Step 4: Simplify right side
    605,257.60x = 281,758,549,539.84
  5. Step 5: Solve for x
    x = 281,758,549,539.84/605,257.60
  6. Step 6: Final answer
    x = 465,518.40

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Similar ratio
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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.