Home / 1,029,274.32-1,420,401.90-570,396.45

Finding the Fourth Proportional to 1,029,274.32, 1,420,401.90 and 570,396.45

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Solution

The fourth proportional to 1,029,274.32, 1,420,401.90 and 570,396.45 is: 787,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,274.32 : 1,420,401.90 = 570,396.45 : x
  2. Step 2: Convert to fraction form
    1,029,274.32/1,420,401.90 = 570,396.45/x
  3. Step 3: Cross multiply
    1,029,274.32x = 1,420,401.90 × 570,396.45
  4. Step 4: Simplify right side
    1,029,274.32x = 810,192,201,333.26
  5. Step 5: Solve for x
    x = 810,192,201,333.26/1,029,274.32
  6. Step 6: Final answer
    x = 787,148.95

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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.