Home / 722,521.20-1,082,615.40-455,804.40

Finding the Fourth Proportional to 722,521.20, 1,082,615.40 and 455,804.40

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Solution

The fourth proportional to 722,521.20, 1,082,615.40 and 455,804.40 is: 682,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,521.20 : 1,082,615.40 = 455,804.40 : x
  2. Step 2: Convert to fraction form
    722,521.20/1,082,615.40 = 455,804.40/x
  3. Step 3: Cross multiply
    722,521.20x = 1,082,615.40 × 455,804.40
  4. Step 4: Simplify right side
    722,521.20x = 493,460,862,827.76
  5. Step 5: Solve for x
    x = 493,460,862,827.76/722,521.20
  6. Step 6: Final answer
    x = 682,970.77

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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.