Home / 1,247,436.80-1,869,004.80-581,222.40

Finding the Fourth Proportional to 1,247,436.80, 1,869,004.80 and 581,222.40

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Solution

The fourth proportional to 1,247,436.80, 1,869,004.80 and 581,222.40 is: 870,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,436.80 : 1,869,004.80 = 581,222.40 : x
  2. Step 2: Convert to fraction form
    1,247,436.80/1,869,004.80 = 581,222.40/x
  3. Step 3: Cross multiply
    1,247,436.80x = 1,869,004.80 × 581,222.40
  4. Step 4: Simplify right side
    1,247,436.80x = 1,086,307,455,467.52
  5. Step 5: Solve for x
    x = 1,086,307,455,467.52/1,247,436.80
  6. Step 6: Final answer
    x = 870,831.66

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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.