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Finding the Fourth Proportional to 325,632.30, 488,448.45 and 286,266.30

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Solution

The fourth proportional to 325,632.30, 488,448.45 and 286,266.30 is: 429,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,632.30 : 488,448.45 = 286,266.30 : x
  2. Step 2: Convert to fraction form
    325,632.30/488,448.45 = 286,266.30/x
  3. Step 3: Cross multiply
    325,632.30x = 488,448.45 × 286,266.30
  4. Step 4: Simplify right side
    325,632.30x = 139,826,330,522.24
  5. Step 5: Solve for x
    x = 139,826,330,522.24/325,632.30
  6. Step 6: Final answer
    x = 429,399.45

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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.