Home / 683,142.40-1,024,022.40-402,515.20

Finding the Fourth Proportional to 683,142.40, 1,024,022.40 and 402,515.20

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Solution

The fourth proportional to 683,142.40, 1,024,022.40 and 402,515.20 is: 603,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,142.40 : 1,024,022.40 = 402,515.20 : x
  2. Step 2: Convert to fraction form
    683,142.40/1,024,022.40 = 402,515.20/x
  3. Step 3: Cross multiply
    683,142.40x = 1,024,022.40 × 402,515.20
  4. Step 4: Simplify right side
    683,142.40x = 412,184,581,140.48
  5. Step 5: Solve for x
    x = 412,184,581,140.48/683,142.40
  6. Step 6: Final answer
    x = 603,365.54

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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.