Home / 1,295,411.52-1,787,690.88-722,390.16

Finding the Fourth Proportional to 1,295,411.52, 1,787,690.88 and 722,390.16

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Solution

The fourth proportional to 1,295,411.52, 1,787,690.88 and 722,390.16 is: 996,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,411.52 : 1,787,690.88 = 722,390.16 : x
  2. Step 2: Convert to fraction form
    1,295,411.52/1,787,690.88 = 722,390.16/x
  3. Step 3: Cross multiply
    1,295,411.52x = 1,787,690.88 × 722,390.16
  4. Step 4: Simplify right side
    1,295,411.52x = 1,291,410,300,833.74
  5. Step 5: Solve for x
    x = 1,291,410,300,833.74/1,295,411.52
  6. Step 6: Final answer
    x = 996,911.24

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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.