Home / 1,528,830.81-2,288,256.05-1,123,915.80

Finding the Fourth Proportional to 1,528,830.81, 2,288,256.05 and 1,123,915.80

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Solution

The fourth proportional to 1,528,830.81, 2,288,256.05 and 1,123,915.80 is: 1,682,205.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,830.81 : 2,288,256.05 = 1,123,915.80 : x
  2. Step 2: Convert to fraction form
    1,528,830.81/2,288,256.05 = 1,123,915.80/x
  3. Step 3: Cross multiply
    1,528,830.81x = 2,288,256.05 × 1,123,915.80
  4. Step 4: Simplify right side
    1,528,830.81x = 2,571,807,123,421.01
  5. Step 5: Solve for x
    x = 2,571,807,123,421.01/1,528,830.81
  6. Step 6: Final answer
    x = 1,682,205.19

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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.