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Finding the Fourth Proportional to 609,317.36, 840,857.28 and 341,045.36

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Solution

The fourth proportional to 609,317.36, 840,857.28 and 341,045.36 is: 470,642.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,317.36 : 840,857.28 = 341,045.36 : x
  2. Step 2: Convert to fraction form
    609,317.36/840,857.28 = 341,045.36/x
  3. Step 3: Cross multiply
    609,317.36x = 840,857.28 × 341,045.36
  4. Step 4: Simplify right side
    609,317.36x = 286,770,473,766.22
  5. Step 5: Solve for x
    x = 286,770,473,766.22/609,317.36
  6. Step 6: Final answer
    x = 470,642.22

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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.