Home / 709,131.09-1,063,893.47-393,809.43

Finding the Fourth Proportional to 709,131.09, 1,063,893.47 and 393,809.43

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Solution

The fourth proportional to 709,131.09, 1,063,893.47 and 393,809.43 is: 590,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,131.09 : 1,063,893.47 = 393,809.43 : x
  2. Step 2: Convert to fraction form
    709,131.09/1,063,893.47 = 393,809.43/x
  3. Step 3: Cross multiply
    709,131.09x = 1,063,893.47 × 393,809.43
  4. Step 4: Simplify right side
    709,131.09x = 418,971,281,001.42
  5. Step 5: Solve for x
    x = 418,971,281,001.42/709,131.09
  6. Step 6: Final answer
    x = 590,823.46

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Double scale
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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.