Home / 531,929.08-734,061.18-290,211.76

Finding the Fourth Proportional to 531,929.08, 734,061.18 and 290,211.76

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Solution

The fourth proportional to 531,929.08, 734,061.18 and 290,211.76 is: 400,491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,929.08 : 734,061.18 = 290,211.76 : x
  2. Step 2: Convert to fraction form
    531,929.08/734,061.18 = 290,211.76/x
  3. Step 3: Cross multiply
    531,929.08x = 734,061.18 × 290,211.76
  4. Step 4: Simplify right side
    531,929.08x = 213,033,186,995.48
  5. Step 5: Solve for x
    x = 213,033,186,995.48/531,929.08
  6. Step 6: Final answer
    x = 400,491.71

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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.