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Finding the Fourth Proportional to 647,846.40, 894,021.96 and 357,460.62

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Solution

The fourth proportional to 647,846.40, 894,021.96 and 357,460.62 is: 493,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,846.40 : 894,021.96 = 357,460.62 : x
  2. Step 2: Convert to fraction form
    647,846.40/894,021.96 = 357,460.62/x
  3. Step 3: Cross multiply
    647,846.40x = 894,021.96 × 357,460.62
  4. Step 4: Simplify right side
    647,846.40x = 319,577,644,115.22
  5. Step 5: Solve for x
    x = 319,577,644,115.22/647,846.40
  6. Step 6: Final answer
    x = 493,292.31

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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.