Home / 831,136.82-1,248,477.27-782,543.74

Finding the Fourth Proportional to 831,136.82, 1,248,477.27 and 782,543.74

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Solution

The fourth proportional to 831,136.82, 1,248,477.27 and 782,543.74 is: 1,175,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,136.82 : 1,248,477.27 = 782,543.74 : x
  2. Step 2: Convert to fraction form
    831,136.82/1,248,477.27 = 782,543.74/x
  3. Step 3: Cross multiply
    831,136.82x = 1,248,477.27 × 782,543.74
  4. Step 4: Simplify right side
    831,136.82x = 976,988,072,170.79
  5. Step 5: Solve for x
    x = 976,988,072,170.79/831,136.82
  6. Step 6: Final answer
    x = 1,175,484.05

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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.