Home / 1,553,685.72-2,144,403.90-980,339.64

Finding the Fourth Proportional to 1,553,685.72, 2,144,403.90 and 980,339.64

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Solution

The fourth proportional to 1,553,685.72, 2,144,403.90 and 980,339.64 is: 1,353,069.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,685.72 : 2,144,403.90 = 980,339.64 : x
  2. Step 2: Convert to fraction form
    1,553,685.72/2,144,403.90 = 980,339.64/x
  3. Step 3: Cross multiply
    1,553,685.72x = 2,144,403.90 × 980,339.64
  4. Step 4: Simplify right side
    1,553,685.72x = 2,102,244,147,340.60
  5. Step 5: Solve for x
    x = 2,102,244,147,340.60/1,553,685.72
  6. Step 6: Final answer
    x = 1,353,069.11

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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.