Home / 1,219,136.23-1,683,230.07-760,948.78

Finding the Fourth Proportional to 1,219,136.23, 1,683,230.07 and 760,948.78

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Solution

The fourth proportional to 1,219,136.23, 1,683,230.07 and 760,948.78 is: 1,050,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,136.23 : 1,683,230.07 = 760,948.78 : x
  2. Step 2: Convert to fraction form
    1,219,136.23/1,683,230.07 = 760,948.78/x
  3. Step 3: Cross multiply
    1,219,136.23x = 1,683,230.07 × 760,948.78
  4. Step 4: Simplify right side
    1,219,136.23x = 1,280,851,868,225.81
  5. Step 5: Solve for x
    x = 1,280,851,868,225.81/1,219,136.23
  6. Step 6: Final answer
    x = 1,050,622.43

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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.