Home / 1,438,703.60-2,157,883.20-1,119,174.72

Finding the Fourth Proportional to 1,438,703.60, 2,157,883.20 and 1,119,174.72

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Solution

The fourth proportional to 1,438,703.60, 2,157,883.20 and 1,119,174.72 is: 1,678,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,703.60 : 2,157,883.20 = 1,119,174.72 : x
  2. Step 2: Convert to fraction form
    1,438,703.60/2,157,883.20 = 1,119,174.72/x
  3. Step 3: Cross multiply
    1,438,703.60x = 2,157,883.20 × 1,119,174.72
  4. Step 4: Simplify right side
    1,438,703.60x = 2,415,048,326,152.70
  5. Step 5: Solve for x
    x = 2,415,048,326,152.70/1,438,703.60
  6. Step 6: Final answer
    x = 1,678,628.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.