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Finding the Fourth Proportional to 886,924.40, 1,330,559.40 and 354,354.80

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Solution

The fourth proportional to 886,924.40, 1,330,559.40 and 354,354.80 is: 531,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,924.40 : 1,330,559.40 = 354,354.80 : x
  2. Step 2: Convert to fraction form
    886,924.40/1,330,559.40 = 354,354.80/x
  3. Step 3: Cross multiply
    886,924.40x = 1,330,559.40 × 354,354.80
  4. Step 4: Simplify right side
    886,924.40x = 471,490,110,075.12
  5. Step 5: Solve for x
    x = 471,490,110,075.12/886,924.40
  6. Step 6: Final answer
    x = 531,601.24

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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.