Home / 455,823.60-684,172.80-231,437.40

Finding the Fourth Proportional to 455,823.60, 684,172.80 and 231,437.40

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Solution

The fourth proportional to 455,823.60, 684,172.80 and 231,437.40 is: 347,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,823.60 : 684,172.80 = 231,437.40 : x
  2. Step 2: Convert to fraction form
    455,823.60/684,172.80 = 231,437.40/x
  3. Step 3: Cross multiply
    455,823.60x = 684,172.80 × 231,437.40
  4. Step 4: Simplify right side
    455,823.60x = 158,343,173,982.72
  5. Step 5: Solve for x
    x = 158,343,173,982.72/455,823.60
  6. Step 6: Final answer
    x = 347,378.18

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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.