Home / 538,036.53-742,466.46-308,429.21

Finding the Fourth Proportional to 538,036.53, 742,466.46 and 308,429.21

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Solution

The fourth proportional to 538,036.53, 742,466.46 and 308,429.21 is: 425,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,036.53 : 742,466.46 = 308,429.21 : x
  2. Step 2: Convert to fraction form
    538,036.53/742,466.46 = 308,429.21/x
  3. Step 3: Cross multiply
    538,036.53x = 742,466.46 × 308,429.21
  4. Step 4: Simplify right side
    538,036.53x = 228,998,338,454.82
  5. Step 5: Solve for x
    x = 228,998,338,454.82/538,036.53
  6. Step 6: Final answer
    x = 425,618.57

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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.