Home / 1,207,639.48-1,666,559.60-663,825.55

Finding the Fourth Proportional to 1,207,639.48, 1,666,559.60 and 663,825.55

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Solution

The fourth proportional to 1,207,639.48, 1,666,559.60 and 663,825.55 is: 916,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,639.48 : 1,666,559.60 = 663,825.55 : x
  2. Step 2: Convert to fraction form
    1,207,639.48/1,666,559.60 = 663,825.55/x
  3. Step 3: Cross multiply
    1,207,639.48x = 1,666,559.60 × 663,825.55
  4. Step 4: Simplify right side
    1,207,639.48x = 1,106,304,843,077.78
  5. Step 5: Solve for x
    x = 1,106,304,843,077.78/1,207,639.48
  6. Step 6: Final answer
    x = 916,088.67

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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.