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Finding the Fourth Proportional to 1,313,958, 1,813,266.36 and 710,350.32

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Solution

The fourth proportional to 1,313,958, 1,813,266.36 and 710,350.32 is: 980,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,958 : 1,813,266.36 = 710,350.32 : x
  2. Step 2: Convert to fraction form
    1,313,958/1,813,266.36 = 710,350.32/x
  3. Step 3: Cross multiply
    1,313,958x = 1,813,266.36 × 710,350.32
  4. Step 4: Simplify right side
    1,313,958x = 1,288,054,339,071.24
  5. Step 5: Solve for x
    x = 1,288,054,339,071.24/1,313,958
  6. Step 6: Final answer
    x = 980,285.78

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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.