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Finding the Fourth Proportional to 615,137.80, 922,965.90 and 334,856.20

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Solution

The fourth proportional to 615,137.80, 922,965.90 and 334,856.20 is: 502,425.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,137.80 : 922,965.90 = 334,856.20 : x
  2. Step 2: Convert to fraction form
    615,137.80/922,965.90 = 334,856.20/x
  3. Step 3: Cross multiply
    615,137.80x = 922,965.90 × 334,856.20
  4. Step 4: Simplify right side
    615,137.80x = 309,060,854,003.58
  5. Step 5: Solve for x
    x = 309,060,854,003.58/615,137.80
  6. Step 6: Final answer
    x = 502,425.40

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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.