Home / 1,282,739.42-1,769,899.23-766,415.75

Finding the Fourth Proportional to 1,282,739.42, 1,769,899.23 and 766,415.75

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Solution

The fourth proportional to 1,282,739.42, 1,769,899.23 and 766,415.75 is: 1,057,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,739.42 : 1,769,899.23 = 766,415.75 : x
  2. Step 2: Convert to fraction form
    1,282,739.42/1,769,899.23 = 766,415.75/x
  3. Step 3: Cross multiply
    1,282,739.42x = 1,769,899.23 × 766,415.75
  4. Step 4: Simplify right side
    1,282,739.42x = 1,356,478,636,935.38
  5. Step 5: Solve for x
    x = 1,356,478,636,935.38/1,282,739.42
  6. Step 6: Final answer
    x = 1,057,485.73

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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.