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Finding the Fourth Proportional to 543,220.60, 749,638.93 and 301,505.26

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Solution

The fourth proportional to 543,220.60, 749,638.93 and 301,505.26 is: 416,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,220.60 : 749,638.93 = 301,505.26 : x
  2. Step 2: Convert to fraction form
    543,220.60/749,638.93 = 301,505.26/x
  3. Step 3: Cross multiply
    543,220.60x = 749,638.93 × 301,505.26
  4. Step 4: Simplify right side
    543,220.60x = 226,020,080,495.77
  5. Step 5: Solve for x
    x = 226,020,080,495.77/543,220.60
  6. Step 6: Final answer
    x = 416,074.21

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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.