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Finding the Fourth Proportional to 734,779.60, 1,100,808.60 and 418,296.40

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Solution

The fourth proportional to 734,779.60, 1,100,808.60 and 418,296.40 is: 626,669.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,779.60 : 1,100,808.60 = 418,296.40 : x
  2. Step 2: Convert to fraction form
    734,779.60/1,100,808.60 = 418,296.40/x
  3. Step 3: Cross multiply
    734,779.60x = 1,100,808.60 × 418,296.40
  4. Step 4: Simplify right side
    734,779.60x = 460,464,274,469.04
  5. Step 5: Solve for x
    x = 460,464,274,469.04/734,779.60
  6. Step 6: Final answer
    x = 626,669.92

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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.