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Finding the Fourth Proportional to 979,327.60, 1,468,991.40 and 908,468.80

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Solution

The fourth proportional to 979,327.60, 1,468,991.40 and 908,468.80 is: 1,362,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,327.60 : 1,468,991.40 = 908,468.80 : x
  2. Step 2: Convert to fraction form
    979,327.60/1,468,991.40 = 908,468.80/x
  3. Step 3: Cross multiply
    979,327.60x = 1,468,991.40 × 908,468.80
  4. Step 4: Simplify right side
    979,327.60x = 1,334,532,854,368.32
  5. Step 5: Solve for x
    x = 1,334,532,854,368.32/979,327.60
  6. Step 6: Final answer
    x = 1,362,703.20

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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.