Home / 921,467.64-1,271,715.31-688,490.31

Finding the Fourth Proportional to 921,467.64, 1,271,715.31 and 688,490.31

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Solution

The fourth proportional to 921,467.64, 1,271,715.31 and 688,490.31 is: 950,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,467.64 : 1,271,715.31 = 688,490.31 : x
  2. Step 2: Convert to fraction form
    921,467.64/1,271,715.31 = 688,490.31/x
  3. Step 3: Cross multiply
    921,467.64x = 1,271,715.31 × 688,490.31
  4. Step 4: Simplify right side
    921,467.64x = 875,563,662,617.04
  5. Step 5: Solve for x
    x = 875,563,662,617.04/921,467.64
  6. Step 6: Final answer
    x = 950,183.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.