Home / 521,464.48-719,621.08-283,000.48

Finding the Fourth Proportional to 521,464.48, 719,621.08 and 283,000.48

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Solution

The fourth proportional to 521,464.48, 719,621.08 and 283,000.48 is: 390,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,464.48 : 719,621.08 = 283,000.48 : x
  2. Step 2: Convert to fraction form
    521,464.48/719,621.08 = 283,000.48/x
  3. Step 3: Cross multiply
    521,464.48x = 719,621.08 × 283,000.48
  4. Step 4: Simplify right side
    521,464.48x = 203,653,111,058.12
  5. Step 5: Solve for x
    x = 203,653,111,058.12/521,464.48
  6. Step 6: Final answer
    x = 390,540.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.