Home / 1,388,488.08-1,915,548.12-904,877.04

Finding the Fourth Proportional to 1,388,488.08, 1,915,548.12 and 904,877.04

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Solution

The fourth proportional to 1,388,488.08, 1,915,548.12 and 904,877.04 is: 1,248,361.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,488.08 : 1,915,548.12 = 904,877.04 : x
  2. Step 2: Convert to fraction form
    1,388,488.08/1,915,548.12 = 904,877.04/x
  3. Step 3: Cross multiply
    1,388,488.08x = 1,915,548.12 × 904,877.04
  4. Step 4: Simplify right side
    1,388,488.08x = 1,733,335,512,803.17
  5. Step 5: Solve for x
    x = 1,733,335,512,803.17/1,388,488.08
  6. Step 6: Final answer
    x = 1,248,361.82

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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.