Home / 1,136,990.71-1,704,915.55-378,565.03

Finding the Fourth Proportional to 1,136,990.71, 1,704,915.55 and 378,565.03

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Solution

The fourth proportional to 1,136,990.71, 1,704,915.55 and 378,565.03 is: 567,657.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,990.71 : 1,704,915.55 = 378,565.03 : x
  2. Step 2: Convert to fraction form
    1,136,990.71/1,704,915.55 = 378,565.03/x
  3. Step 3: Cross multiply
    1,136,990.71x = 1,704,915.55 × 378,565.03
  4. Step 4: Simplify right side
    1,136,990.71x = 645,421,406,333.22
  5. Step 5: Solve for x
    x = 645,421,406,333.22/1,136,990.71
  6. Step 6: Final answer
    x = 567,657.59

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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.