Home / 1,361,903.70-1,879,366.47-780,710.16

Finding the Fourth Proportional to 1,361,903.70, 1,879,366.47 and 780,710.16

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Solution

The fourth proportional to 1,361,903.70, 1,879,366.47 and 780,710.16 is: 1,077,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,903.70 : 1,879,366.47 = 780,710.16 : x
  2. Step 2: Convert to fraction form
    1,361,903.70/1,879,366.47 = 780,710.16/x
  3. Step 3: Cross multiply
    1,361,903.70x = 1,879,366.47 × 780,710.16
  4. Step 4: Simplify right side
    1,361,903.70x = 1,467,240,499,722.12
  5. Step 5: Solve for x
    x = 1,467,240,499,722.12/1,361,903.70
  6. Step 6: Final answer
    x = 1,077,345.26

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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.