Home / 1,000,352.48-1,380,109.59-656,378.28

Finding the Fourth Proportional to 1,000,352.48, 1,380,109.59 and 656,378.28

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Solution

The fourth proportional to 1,000,352.48, 1,380,109.59 and 656,378.28 is: 905,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,352.48 : 1,380,109.59 = 656,378.28 : x
  2. Step 2: Convert to fraction form
    1,000,352.48/1,380,109.59 = 656,378.28/x
  3. Step 3: Cross multiply
    1,000,352.48x = 1,380,109.59 × 656,378.28
  4. Step 4: Simplify right side
    1,000,352.48x = 905,873,958,895.71
  5. Step 5: Solve for x
    x = 905,873,958,895.71/1,000,352.48
  6. Step 6: Final answer
    x = 905,554.77

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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.