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Finding the Fourth Proportional to 543,010.03, 749,342.34 and 301,287.40

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Solution

The fourth proportional to 543,010.03, 749,342.34 and 301,287.40 is: 415,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,010.03 : 749,342.34 = 301,287.40 : x
  2. Step 2: Convert to fraction form
    543,010.03/749,342.34 = 301,287.40/x
  3. Step 3: Cross multiply
    543,010.03x = 749,342.34 × 301,287.40
  4. Step 4: Simplify right side
    543,010.03x = 225,767,403,455.16
  5. Step 5: Solve for x
    x = 225,767,403,455.16/543,010.03
  6. Step 6: Final answer
    x = 415,770.23

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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.