Home / 1,630,859.40-2,250,638.46-905,715.81

Finding the Fourth Proportional to 1,630,859.40, 2,250,638.46 and 905,715.81

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Solution

The fourth proportional to 1,630,859.40, 2,250,638.46 and 905,715.81 is: 1,249,916.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,859.40 : 2,250,638.46 = 905,715.81 : x
  2. Step 2: Convert to fraction form
    1,630,859.40/2,250,638.46 = 905,715.81/x
  3. Step 3: Cross multiply
    1,630,859.40x = 2,250,638.46 × 905,715.81
  4. Step 4: Simplify right side
    1,630,859.40x = 2,038,438,835,816.05
  5. Step 5: Solve for x
    x = 2,038,438,835,816.05/1,630,859.40
  6. Step 6: Final answer
    x = 1,249,916.97

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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.