Home / 688,168.56-1,032,500.52-309,059.76

Finding the Fourth Proportional to 688,168.56, 1,032,500.52 and 309,059.76

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Solution

The fourth proportional to 688,168.56, 1,032,500.52 and 309,059.76 is: 463,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,168.56 : 1,032,500.52 = 309,059.76 : x
  2. Step 2: Convert to fraction form
    688,168.56/1,032,500.52 = 309,059.76/x
  3. Step 3: Cross multiply
    688,168.56x = 1,032,500.52 × 309,059.76
  4. Step 4: Simplify right side
    688,168.56x = 319,104,362,911.08
  5. Step 5: Solve for x
    x = 319,104,362,911.08/688,168.56
  6. Step 6: Final answer
    x = 463,700.87

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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.