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Finding the Fourth Proportional to 559,689, 839,533.50 and 204,509.40

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Solution

The fourth proportional to 559,689, 839,533.50 and 204,509.40 is: 306,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,689 : 839,533.50 = 204,509.40 : x
  2. Step 2: Convert to fraction form
    559,689/839,533.50 = 204,509.40/x
  3. Step 3: Cross multiply
    559,689x = 839,533.50 × 204,509.40
  4. Step 4: Simplify right side
    559,689x = 171,692,492,364.90
  5. Step 5: Solve for x
    x = 171,692,492,364.90/559,689
  6. Step 6: Final answer
    x = 306,764.10

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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.