Home / 436,075.20-654,112.80-317,102.40

Finding the Fourth Proportional to 436,075.20, 654,112.80 and 317,102.40

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Solution

The fourth proportional to 436,075.20, 654,112.80 and 317,102.40 is: 475,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,075.20 : 654,112.80 = 317,102.40 : x
  2. Step 2: Convert to fraction form
    436,075.20/654,112.80 = 317,102.40/x
  3. Step 3: Cross multiply
    436,075.20x = 654,112.80 × 317,102.40
  4. Step 4: Simplify right side
    436,075.20x = 207,420,738,750.72
  5. Step 5: Solve for x
    x = 207,420,738,750.72/436,075.20
  6. Step 6: Final answer
    x = 475,653.60

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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.