Home / 1,280,429-1,767,027.68-707,506.28

Finding the Fourth Proportional to 1,280,429, 1,767,027.68 and 707,506.28

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Solution

The fourth proportional to 1,280,429, 1,767,027.68 and 707,506.28 is: 976,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,429 : 1,767,027.68 = 707,506.28 : x
  2. Step 2: Convert to fraction form
    1,280,429/1,767,027.68 = 707,506.28/x
  3. Step 3: Cross multiply
    1,280,429x = 1,767,027.68 × 707,506.28
  4. Step 4: Simplify right side
    1,280,429x = 1,250,183,180,533.83
  5. Step 5: Solve for x
    x = 1,250,183,180,533.83/1,280,429
  6. Step 6: Final answer
    x = 976,378.37

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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.