Home / 1,319,318.70-1,820,740.31-738,530.47

Finding the Fourth Proportional to 1,319,318.70, 1,820,740.31 and 738,530.47

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Solution

The fourth proportional to 1,319,318.70, 1,820,740.31 and 738,530.47 is: 1,019,217.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,318.70 : 1,820,740.31 = 738,530.47 : x
  2. Step 2: Convert to fraction form
    1,319,318.70/1,820,740.31 = 738,530.47/x
  3. Step 3: Cross multiply
    1,319,318.70x = 1,820,740.31 × 738,530.47
  4. Step 4: Simplify right side
    1,319,318.70x = 1,344,672,196,892.25
  5. Step 5: Solve for x
    x = 1,344,672,196,892.25/1,319,318.70
  6. Step 6: Final answer
    x = 1,019,217.11

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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.