Home / 1,038,991.20-1,554,942.03-870,701.55

Finding the Fourth Proportional to 1,038,991.20, 1,554,942.03 and 870,701.55

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Solution

The fourth proportional to 1,038,991.20, 1,554,942.03 and 870,701.55 is: 1,303,081.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,991.20 : 1,554,942.03 = 870,701.55 : x
  2. Step 2: Convert to fraction form
    1,038,991.20/1,554,942.03 = 870,701.55/x
  3. Step 3: Cross multiply
    1,038,991.20x = 1,554,942.03 × 870,701.55
  4. Step 4: Simplify right side
    1,038,991.20x = 1,353,890,435,681.15
  5. Step 5: Solve for x
    x = 1,353,890,435,681.15/1,038,991.20
  6. Step 6: Final answer
    x = 1,303,081.72

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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.