Home / 529,630.40-793,927.20-213,665.60

Finding the Fourth Proportional to 529,630.40, 793,927.20 and 213,665.60

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Solution

The fourth proportional to 529,630.40, 793,927.20 and 213,665.60 is: 320,289.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,630.40 : 793,927.20 = 213,665.60 : x
  2. Step 2: Convert to fraction form
    529,630.40/793,927.20 = 213,665.60/x
  3. Step 3: Cross multiply
    529,630.40x = 793,927.20 × 213,665.60
  4. Step 4: Simplify right side
    529,630.40x = 169,634,931,544.32
  5. Step 5: Solve for x
    x = 169,634,931,544.32/529,630.40
  6. Step 6: Final answer
    x = 320,289.27

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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.