Home / 745,075.54-1,028,175.70-422,766.42

Finding the Fourth Proportional to 745,075.54, 1,028,175.70 and 422,766.42

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Solution

The fourth proportional to 745,075.54, 1,028,175.70 and 422,766.42 is: 583,401.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,075.54 : 1,028,175.70 = 422,766.42 : x
  2. Step 2: Convert to fraction form
    745,075.54/1,028,175.70 = 422,766.42/x
  3. Step 3: Cross multiply
    745,075.54x = 1,028,175.70 × 422,766.42
  4. Step 4: Simplify right side
    745,075.54x = 434,678,159,819.99
  5. Step 5: Solve for x
    x = 434,678,159,819.99/745,075.54
  6. Step 6: Final answer
    x = 583,401.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.