Home / 393,483.02-589,002.74-213,120.48

Finding the Fourth Proportional to 393,483.02, 589,002.74 and 213,120.48

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Solution

The fourth proportional to 393,483.02, 589,002.74 and 213,120.48 is: 319,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,483.02 : 589,002.74 = 213,120.48 : x
  2. Step 2: Convert to fraction form
    393,483.02/589,002.74 = 213,120.48/x
  3. Step 3: Cross multiply
    393,483.02x = 589,002.74 × 213,120.48
  4. Step 4: Simplify right side
    393,483.02x = 125,528,548,612.48
  5. Step 5: Solve for x
    x = 125,528,548,612.48/393,483.02
  6. Step 6: Final answer
    x = 319,018.98

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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.