Home / 535,376.46-738,881.26-320,516.40

Finding the Fourth Proportional to 535,376.46, 738,881.26 and 320,516.40

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Solution

The fourth proportional to 535,376.46, 738,881.26 and 320,516.40 is: 442,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,376.46 : 738,881.26 = 320,516.40 : x
  2. Step 2: Convert to fraction form
    535,376.46/738,881.26 = 320,516.40/x
  3. Step 3: Cross multiply
    535,376.46x = 738,881.26 × 320,516.40
  4. Step 4: Simplify right side
    535,376.46x = 236,823,561,482.66
  5. Step 5: Solve for x
    x = 236,823,561,482.66/535,376.46
  6. Step 6: Final answer
    x = 442,349.60

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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.