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Finding the Fourth Proportional to 432,395.40, 595,384.62 and 391,845.24

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Solution

The fourth proportional to 432,395.40, 595,384.62 and 391,845.24 is: 539,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,395.40 : 595,384.62 = 391,845.24 : x
  2. Step 2: Convert to fraction form
    432,395.40/595,384.62 = 391,845.24/x
  3. Step 3: Cross multiply
    432,395.40x = 595,384.62 × 391,845.24
  4. Step 4: Simplify right side
    432,395.40x = 233,298,629,316.21
  5. Step 5: Solve for x
    x = 233,298,629,316.21/432,395.40
  6. Step 6: Final answer
    x = 539,549.29

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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.