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Finding the Fourth Proportional to 534,809.79, 738,045.68 and 293,090.40

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Solution

The fourth proportional to 534,809.79, 738,045.68 and 293,090.40 is: 404,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,809.79 : 738,045.68 = 293,090.40 : x
  2. Step 2: Convert to fraction form
    534,809.79/738,045.68 = 293,090.40/x
  3. Step 3: Cross multiply
    534,809.79x = 738,045.68 × 293,090.40
  4. Step 4: Simplify right side
    534,809.79x = 216,314,102,104.02
  5. Step 5: Solve for x
    x = 216,314,102,104.02/534,809.79
  6. Step 6: Final answer
    x = 404,469.23

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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.