Home / 538,036.04-742,491.96-308,602.28

Finding the Fourth Proportional to 538,036.04, 742,491.96 and 308,602.28

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Solution

The fourth proportional to 538,036.04, 742,491.96 and 308,602.28 is: 425,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,036.04 : 742,491.96 = 308,602.28 : x
  2. Step 2: Convert to fraction form
    538,036.04/742,491.96 = 308,602.28/x
  3. Step 3: Cross multiply
    538,036.04x = 742,491.96 × 308,602.28
  4. Step 4: Simplify right side
    538,036.04x = 229,134,711,737.67
  5. Step 5: Solve for x
    x = 229,134,711,737.67/538,036.04
  6. Step 6: Final answer
    x = 425,872.42

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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.