Home / 872,308.98-1,307,927.56-339,208.58

Finding the Fourth Proportional to 872,308.98, 1,307,927.56 and 339,208.58

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Solution

The fourth proportional to 872,308.98, 1,307,927.56 and 339,208.58 is: 508,604.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,308.98 : 1,307,927.56 = 339,208.58 : x
  2. Step 2: Convert to fraction form
    872,308.98/1,307,927.56 = 339,208.58/x
  3. Step 3: Cross multiply
    872,308.98x = 1,307,927.56 × 339,208.58
  4. Step 4: Simplify right side
    872,308.98x = 443,660,250,370.47
  5. Step 5: Solve for x
    x = 443,660,250,370.47/872,308.98
  6. Step 6: Final answer
    x = 508,604.47

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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.