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Finding the Fourth Proportional to 613,521.02, 920,427.59 and 309,167.37

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Solution

The fourth proportional to 613,521.02, 920,427.59 and 309,167.37 is: 463,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,521.02 : 920,427.59 = 309,167.37 : x
  2. Step 2: Convert to fraction form
    613,521.02/920,427.59 = 309,167.37/x
  3. Step 3: Cross multiply
    613,521.02x = 920,427.59 × 309,167.37
  4. Step 4: Simplify right side
    613,521.02x = 284,566,177,275.74
  5. Step 5: Solve for x
    x = 284,566,177,275.74/613,521.02
  6. Step 6: Final answer
    x = 463,824.66

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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.