Home / 537,929.30-742,318.53-308,322.05

Finding the Fourth Proportional to 537,929.30, 742,318.53 and 308,322.05

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Solution

The fourth proportional to 537,929.30, 742,318.53 and 308,322.05 is: 425,470.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,929.30 : 742,318.53 = 308,322.05 : x
  2. Step 2: Convert to fraction form
    537,929.30/742,318.53 = 308,322.05/x
  3. Step 3: Cross multiply
    537,929.30x = 742,318.53 × 308,322.05
  4. Step 4: Simplify right side
    537,929.30x = 228,873,166,054.79
  5. Step 5: Solve for x
    x = 228,873,166,054.79/537,929.30
  6. Step 6: Final answer
    x = 425,470.72

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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.