Home / 1,086,930.32-1,630,602.56-438,557.94

Finding the Fourth Proportional to 1,086,930.32, 1,630,602.56 and 438,557.94

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Solution

The fourth proportional to 1,086,930.32, 1,630,602.56 and 438,557.94 is: 657,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,930.32 : 1,630,602.56 = 438,557.94 : x
  2. Step 2: Convert to fraction form
    1,086,930.32/1,630,602.56 = 438,557.94/x
  3. Step 3: Cross multiply
    1,086,930.32x = 1,630,602.56 × 438,557.94
  4. Step 4: Simplify right side
    1,086,930.32x = 715,113,700,768.72
  5. Step 5: Solve for x
    x = 715,113,700,768.72/1,086,930.32
  6. Step 6: Final answer
    x = 657,920.47

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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.