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Finding the Fourth Proportional to 670,599.54, 925,389.97 and 384,138.08

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Solution

The fourth proportional to 670,599.54, 925,389.97 and 384,138.08 is: 530,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,599.54 : 925,389.97 = 384,138.08 : x
  2. Step 2: Convert to fraction form
    670,599.54/925,389.97 = 384,138.08/x
  3. Step 3: Cross multiply
    670,599.54x = 925,389.97 × 384,138.08
  4. Step 4: Simplify right side
    670,599.54x = 355,477,524,209.98
  5. Step 5: Solve for x
    x = 355,477,524,209.98/670,599.54
  6. Step 6: Final answer
    x = 530,089.13

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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.