Home / 684,525.78-1,024,686.74-430,617.42

Finding the Fourth Proportional to 684,525.78, 1,024,686.74 and 430,617.42

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Solution

The fourth proportional to 684,525.78, 1,024,686.74 and 430,617.42 is: 644,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,525.78 : 1,024,686.74 = 430,617.42 : x
  2. Step 2: Convert to fraction form
    684,525.78/1,024,686.74 = 430,617.42/x
  3. Step 3: Cross multiply
    684,525.78x = 1,024,686.74 × 430,617.42
  4. Step 4: Simplify right side
    684,525.78x = 441,247,958,801.84
  5. Step 5: Solve for x
    x = 441,247,958,801.84/684,525.78
  6. Step 6: Final answer
    x = 644,603.86

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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.