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Finding the Fourth Proportional to 851,088.52, 1,275,038.70 and 763,453

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Solution

The fourth proportional to 851,088.52, 1,275,038.70 and 763,453 is: 1,143,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,088.52 : 1,275,038.70 = 763,453 : x
  2. Step 2: Convert to fraction form
    851,088.52/1,275,038.70 = 763,453/x
  3. Step 3: Cross multiply
    851,088.52x = 1,275,038.70 × 763,453
  4. Step 4: Simplify right side
    851,088.52x = 973,432,120,631.10
  5. Step 5: Solve for x
    x = 973,432,120,631.10/851,088.52
  6. Step 6: Final answer
    x = 1,143,749.56

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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.