Home / 668,835.20-1,003,252.80-314,541.20

Finding the Fourth Proportional to 668,835.20, 1,003,252.80 and 314,541.20

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Solution

The fourth proportional to 668,835.20, 1,003,252.80 and 314,541.20 is: 471,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,835.20 : 1,003,252.80 = 314,541.20 : x
  2. Step 2: Convert to fraction form
    668,835.20/1,003,252.80 = 314,541.20/x
  3. Step 3: Cross multiply
    668,835.20x = 1,003,252.80 × 314,541.20
  4. Step 4: Simplify right side
    668,835.20x = 315,564,339,615.36
  5. Step 5: Solve for x
    x = 315,564,339,615.36/668,835.20
  6. Step 6: Final answer
    x = 471,811.80

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1.5x scale

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.