Home / 1,282,315-1,769,441.60-709,277.28

Finding the Fourth Proportional to 1,282,315, 1,769,441.60 and 709,277.28

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Solution

The fourth proportional to 1,282,315, 1,769,441.60 and 709,277.28 is: 978,717.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,315 : 1,769,441.60 = 709,277.28 : x
  2. Step 2: Convert to fraction form
    1,282,315/1,769,441.60 = 709,277.28/x
  3. Step 3: Cross multiply
    1,282,315x = 1,769,441.60 × 709,277.28
  4. Step 4: Simplify right side
    1,282,315x = 1,255,024,725,166.85
  5. Step 5: Solve for x
    x = 1,255,024,725,166.85/1,282,315
  6. Step 6: Final answer
    x = 978,717.96

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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.