Home / 2,689,066.80-4,030,549.34-1,678,640.00

Finding the Fourth Proportional to 2,689,066.80, 4,030,549.34 and 1,678,640.00

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Solution

The fourth proportional to 2,689,066.80, 4,030,549.34 and 1,678,640.00 is: 2,516,055.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,066.80 : 4,030,549.34 = 1,678,640.00 : x
  2. Step 2: Convert to fraction form
    2,689,066.80/4,030,549.34 = 1,678,640.00/x
  3. Step 3: Cross multiply
    2,689,066.80x = 4,030,549.34 × 1,678,640.00
  4. Step 4: Simplify right side
    2,689,066.80x = 6,765,841,315,551.65
  5. Step 5: Solve for x
    x = 6,765,841,315,551.65/2,689,066.80
  6. Step 6: Final answer
    x = 2,516,055.50

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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.