Home / 867,387.42-1,300,831.38-298,745.55

Finding the Fourth Proportional to 867,387.42, 1,300,831.38 and 298,745.55

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Solution

The fourth proportional to 867,387.42, 1,300,831.38 and 298,745.55 is: 448,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,387.42 : 1,300,831.38 = 298,745.55 : x
  2. Step 2: Convert to fraction form
    867,387.42/1,300,831.38 = 298,745.55/x
  3. Step 3: Cross multiply
    867,387.42x = 1,300,831.38 × 298,745.55
  4. Step 4: Simplify right side
    867,387.42x = 388,617,586,075.36
  5. Step 5: Solve for x
    x = 388,617,586,075.36/867,387.42
  6. Step 6: Final answer
    x = 448,032.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.