Home / 1,388,896.65-2,083,544.59-429,427.05

Finding the Fourth Proportional to 1,388,896.65, 2,083,544.59 and 429,427.05

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Solution

The fourth proportional to 1,388,896.65, 2,083,544.59 and 429,427.05 is: 644,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,896.65 : 2,083,544.59 = 429,427.05 : x
  2. Step 2: Convert to fraction form
    1,388,896.65/2,083,544.59 = 429,427.05/x
  3. Step 3: Cross multiply
    1,388,896.65x = 2,083,544.59 × 429,427.05
  4. Step 4: Simplify right side
    1,388,896.65x = 894,730,406,827.16
  5. Step 5: Solve for x
    x = 894,730,406,827.16/1,388,896.65
  6. Step 6: Final answer
    x = 644,202.29

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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.