Home / 1,388,489.08-1,915,549.50-904,878.04

Finding the Fourth Proportional to 1,388,489.08, 1,915,549.50 and 904,878.04

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Solution

The fourth proportional to 1,388,489.08, 1,915,549.50 and 904,878.04 is: 1,248,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,489.08 : 1,915,549.50 = 904,878.04 : x
  2. Step 2: Convert to fraction form
    1,388,489.08/1,915,549.50 = 904,878.04/x
  3. Step 3: Cross multiply
    1,388,489.08x = 1,915,549.50 × 904,878.04
  4. Step 4: Simplify right side
    1,388,489.08x = 1,733,338,677,082.98
  5. Step 5: Solve for x
    x = 1,733,338,677,082.98/1,388,489.08
  6. Step 6: Final answer
    x = 1,248,363.20

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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.