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Finding the Fourth Proportional to 521,444.32, 719,593.12 and 282,980.32

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Solution

The fourth proportional to 521,444.32, 719,593.12 and 282,980.32 is: 390,512.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,444.32 : 719,593.12 = 282,980.32 : x
  2. Step 2: Convert to fraction form
    521,444.32/719,593.12 = 282,980.32/x
  3. Step 3: Cross multiply
    521,444.32x = 719,593.12 × 282,980.32
  4. Step 4: Simplify right side
    521,444.32x = 203,630,691,367.40
  5. Step 5: Solve for x
    x = 203,630,691,367.40/521,444.32
  6. Step 6: Final answer
    x = 390,512.82

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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.