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Finding the Fourth Proportional to 889,057, 1,333,702.68 and 289,808.20

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Solution

The fourth proportional to 889,057, 1,333,702.68 and 289,808.20 is: 434,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,057 : 1,333,702.68 = 289,808.20 : x
  2. Step 2: Convert to fraction form
    889,057/1,333,702.68 = 289,808.20/x
  3. Step 3: Cross multiply
    889,057x = 1,333,702.68 × 289,808.20
  4. Step 4: Simplify right side
    889,057x = 386,517,973,025.98
  5. Step 5: Solve for x
    x = 386,517,973,025.98/889,057
  6. Step 6: Final answer
    x = 434,750.50

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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.