Home / 688,892.45-1,033,108.63-289,458.77

Finding the Fourth Proportional to 688,892.45, 1,033,108.63 and 289,458.77

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Solution

The fourth proportional to 688,892.45, 1,033,108.63 and 289,458.77 is: 434,091.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,892.45 : 1,033,108.63 = 289,458.77 : x
  2. Step 2: Convert to fraction form
    688,892.45/1,033,108.63 = 289,458.77/x
  3. Step 3: Cross multiply
    688,892.45x = 1,033,108.63 × 289,458.77
  4. Step 4: Simplify right side
    688,892.45x = 299,042,347,427.00
  5. Step 5: Solve for x
    x = 299,042,347,427.00/688,892.45
  6. Step 6: Final answer
    x = 434,091.49

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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.