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Finding the Fourth Proportional to 556,158.82, 834,486.36 and 256,478.53

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Solution

The fourth proportional to 556,158.82, 834,486.36 and 256,478.53 is: 384,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,158.82 : 834,486.36 = 256,478.53 : x
  2. Step 2: Convert to fraction form
    556,158.82/834,486.36 = 256,478.53/x
  3. Step 3: Cross multiply
    556,158.82x = 834,486.36 × 256,478.53
  4. Step 4: Simplify right side
    556,158.82x = 214,027,831,869.84
  5. Step 5: Solve for x
    x = 214,027,831,869.84/556,158.82
  6. Step 6: Final answer
    x = 384,832.22

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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.