Home / 1,500,531.81-2,070,931.01-855,804.21

Finding the Fourth Proportional to 1,500,531.81, 2,070,931.01 and 855,804.21

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Solution

The fourth proportional to 1,500,531.81, 2,070,931.01 and 855,804.21 is: 1,181,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,531.81 : 2,070,931.01 = 855,804.21 : x
  2. Step 2: Convert to fraction form
    1,500,531.81/2,070,931.01 = 855,804.21/x
  3. Step 3: Cross multiply
    1,500,531.81x = 2,070,931.01 × 855,804.21
  4. Step 4: Simplify right side
    1,500,531.81x = 1,772,311,476,977.55
  5. Step 5: Solve for x
    x = 1,772,311,476,977.55/1,500,531.81
  6. Step 6: Final answer
    x = 1,181,122.23

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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.