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Finding the Fourth Proportional to 556,710.23, 834,419.88 and 256,560.28

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Solution

The fourth proportional to 556,710.23, 834,419.88 and 256,560.28 is: 384,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,710.23 : 834,419.88 = 256,560.28 : x
  2. Step 2: Convert to fraction form
    556,710.23/834,419.88 = 256,560.28/x
  3. Step 3: Cross multiply
    556,710.23x = 834,419.88 × 256,560.28
  4. Step 4: Simplify right side
    556,710.23x = 214,078,995,964.32
  5. Step 5: Solve for x
    x = 214,078,995,964.32/556,710.23
  6. Step 6: Final answer
    x = 384,542.95

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1.5x scale

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.