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Finding the Fourth Proportional to 556,490.16, 834,090.48 and 256,340.88

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Solution

The fourth proportional to 556,490.16, 834,090.48 and 256,340.88 is: 384,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,490.16 : 834,090.48 = 256,340.88 : x
  2. Step 2: Convert to fraction form
    556,490.16/834,090.48 = 256,340.88/x
  3. Step 3: Cross multiply
    556,490.16x = 834,090.48 × 256,340.88
  4. Step 4: Simplify right side
    556,490.16x = 213,811,487,642.82
  5. Step 5: Solve for x
    x = 213,811,487,642.82/556,490.16
  6. Step 6: Final answer
    x = 384,214.32

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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.