Home / 722,480.80-1,083,721.20-470,538.40

Finding the Fourth Proportional to 722,480.80, 1,083,721.20 and 470,538.40

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Solution

The fourth proportional to 722,480.80, 1,083,721.20 and 470,538.40 is: 705,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,480.80 : 1,083,721.20 = 470,538.40 : x
  2. Step 2: Convert to fraction form
    722,480.80/1,083,721.20 = 470,538.40/x
  3. Step 3: Cross multiply
    722,480.80x = 1,083,721.20 × 470,538.40
  4. Step 4: Simplify right side
    722,480.80x = 509,932,439,494.08
  5. Step 5: Solve for x
    x = 509,932,439,494.08/722,480.80
  6. Step 6: Final answer
    x = 705,807.60

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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.