Home / 2,590,847.80-3,886,271.70-817,689.40

Finding the Fourth Proportional to 2,590,847.80, 3,886,271.70 and 817,689.40

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Solution

The fourth proportional to 2,590,847.80, 3,886,271.70 and 817,689.40 is: 1,226,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590,847.80 : 3,886,271.70 = 817,689.40 : x
  2. Step 2: Convert to fraction form
    2,590,847.80/3,886,271.70 = 817,689.40/x
  3. Step 3: Cross multiply
    2,590,847.80x = 3,886,271.70 × 817,689.40
  4. Step 4: Simplify right side
    2,590,847.80x = 3,177,763,174,609.98
  5. Step 5: Solve for x
    x = 3,177,763,174,609.98/2,590,847.80
  6. Step 6: Final answer
    x = 1,226,534.10

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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.