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Finding the Fourth Proportional to 645,090.71, 967,522.91 and 245,755.44

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Solution

The fourth proportional to 645,090.71, 967,522.91 and 245,755.44 is: 368,590.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,090.71 : 967,522.91 = 245,755.44 : x
  2. Step 2: Convert to fraction form
    645,090.71/967,522.91 = 245,755.44/x
  3. Step 3: Cross multiply
    645,090.71x = 967,522.91 × 245,755.44
  4. Step 4: Simplify right side
    645,090.71x = 237,774,017,228.35
  5. Step 5: Solve for x
    x = 237,774,017,228.35/645,090.71
  6. Step 6: Final answer
    x = 368,590.05

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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.