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Finding the Fourth Proportional to 648,193.51, 894,507.21 and 357,805.24

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Solution

The fourth proportional to 648,193.51, 894,507.21 and 357,805.24 is: 493,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,193.51 : 894,507.21 = 357,805.24 : x
  2. Step 2: Convert to fraction form
    648,193.51/894,507.21 = 357,805.24/x
  3. Step 3: Cross multiply
    648,193.51x = 894,507.21 × 357,805.24
  4. Step 4: Simplify right side
    648,193.51x = 320,059,366,955.78
  5. Step 5: Solve for x
    x = 320,059,366,955.78/648,193.51
  6. Step 6: Final answer
    x = 493,771.32

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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.