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Finding the Fourth Proportional to 854,952.60, 1,280,679.30 and 434,465.40

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Solution

The fourth proportional to 854,952.60, 1,280,679.30 and 434,465.40 is: 650,809.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,952.60 : 1,280,679.30 = 434,465.40 : x
  2. Step 2: Convert to fraction form
    854,952.60/1,280,679.30 = 434,465.40/x
  3. Step 3: Cross multiply
    854,952.60x = 1,280,679.30 × 434,465.40
  4. Step 4: Simplify right side
    854,952.60x = 556,410,844,346.22
  5. Step 5: Solve for x
    x = 556,410,844,346.22/854,952.60
  6. Step 6: Final answer
    x = 650,809.00

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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.