Home / 1,630,867.90-2,250,650.19-905,724.31

Finding the Fourth Proportional to 1,630,867.90, 2,250,650.19 and 905,724.31

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Solution

The fourth proportional to 1,630,867.90, 2,250,650.19 and 905,724.31 is: 1,249,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,867.90 : 2,250,650.19 = 905,724.31 : x
  2. Step 2: Convert to fraction form
    1,630,867.90/2,250,650.19 = 905,724.31/x
  3. Step 3: Cross multiply
    1,630,867.90x = 2,250,650.19 × 905,724.31
  4. Step 4: Simplify right side
    1,630,867.90x = 2,038,468,590,389.12
  5. Step 5: Solve for x
    x = 2,038,468,590,389.12/1,630,867.90
  6. Step 6: Final answer
    x = 1,249,928.70

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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.