Home / 1,312,728-1,811,566.26-709,116

Finding the Fourth Proportional to 1,312,728, 1,811,566.26 and 709,116

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Solution

The fourth proportional to 1,312,728, 1,811,566.26 and 709,116 is: 978,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,728 : 1,811,566.26 = 709,116 : x
  2. Step 2: Convert to fraction form
    1,312,728/1,811,566.26 = 709,116/x
  3. Step 3: Cross multiply
    1,312,728x = 1,811,566.26 × 709,116
  4. Step 4: Simplify right side
    1,312,728x = 1,284,610,620,026.16
  5. Step 5: Solve for x
    x = 1,284,610,620,026.16/1,312,728
  6. Step 6: Final answer
    x = 978,580.96

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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.