Home / 1,069,362.09-1,603,918.26-429,640.02

Finding the Fourth Proportional to 1,069,362.09, 1,603,918.26 and 429,640.02

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Solution

The fourth proportional to 1,069,362.09, 1,603,918.26 and 429,640.02 is: 644,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,362.09 : 1,603,918.26 = 429,640.02 : x
  2. Step 2: Convert to fraction form
    1,069,362.09/1,603,918.26 = 429,640.02/x
  3. Step 3: Cross multiply
    1,069,362.09x = 1,603,918.26 × 429,640.02
  4. Step 4: Simplify right side
    1,069,362.09x = 689,107,473,304.77
  5. Step 5: Solve for x
    x = 689,107,473,304.77/1,069,362.09
  6. Step 6: Final answer
    x = 644,409.86

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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.