Home / 858,835.50-1,288,394.01-353,259.42

Finding the Fourth Proportional to 858,835.50, 1,288,394.01 and 353,259.42

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Solution

The fourth proportional to 858,835.50, 1,288,394.01 and 353,259.42 is: 529,947.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,835.50 : 1,288,394.01 = 353,259.42 : x
  2. Step 2: Convert to fraction form
    858,835.50/1,288,394.01 = 353,259.42/x
  3. Step 3: Cross multiply
    858,835.50x = 1,288,394.01 × 353,259.42
  4. Step 4: Simplify right side
    858,835.50x = 455,137,320,704.07
  5. Step 5: Solve for x
    x = 455,137,320,704.07/858,835.50
  6. Step 6: Final answer
    x = 529,947.03

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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.