Home / 743,052.36-1,025,401.50-403,519.80

Finding the Fourth Proportional to 743,052.36, 1,025,401.50 and 403,519.80

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Solution

The fourth proportional to 743,052.36, 1,025,401.50 and 403,519.80 is: 556,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,052.36 : 1,025,401.50 = 403,519.80 : x
  2. Step 2: Convert to fraction form
    743,052.36/1,025,401.50 = 403,519.80/x
  3. Step 3: Cross multiply
    743,052.36x = 1,025,401.50 × 403,519.80
  4. Step 4: Simplify right side
    743,052.36x = 413,769,808,199.70
  5. Step 5: Solve for x
    x = 413,769,808,199.70/743,052.36
  6. Step 6: Final answer
    x = 556,851.48

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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.