Home / 717,426.99-1,075,402.35-318,255.75

Finding the Fourth Proportional to 717,426.99, 1,075,402.35 and 318,255.75

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Solution

The fourth proportional to 717,426.99, 1,075,402.35 and 318,255.75 is: 477,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,426.99 : 1,075,402.35 = 318,255.75 : x
  2. Step 2: Convert to fraction form
    717,426.99/1,075,402.35 = 318,255.75/x
  3. Step 3: Cross multiply
    717,426.99x = 1,075,402.35 × 318,255.75
  4. Step 4: Simplify right side
    717,426.99x = 342,252,981,451.01
  5. Step 5: Solve for x
    x = 342,252,981,451.01/717,426.99
  6. Step 6: Final answer
    x = 477,056.18

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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.