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Finding the Fourth Proportional to 543,775.98, 750,683.52 and 339,940.20

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Solution

The fourth proportional to 543,775.98, 750,683.52 and 339,940.20 is: 469,287.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,775.98 : 750,683.52 = 339,940.20 : x
  2. Step 2: Convert to fraction form
    543,775.98/750,683.52 = 339,940.20/x
  3. Step 3: Cross multiply
    543,775.98x = 750,683.52 × 339,940.20
  4. Step 4: Simplify right side
    543,775.98x = 255,187,505,925.50
  5. Step 5: Solve for x
    x = 255,187,505,925.50/543,775.98
  6. Step 6: Final answer
    x = 469,287.93

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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.