Home / 1,369,720.09-1,890,269.40-757,862.89

Finding the Fourth Proportional to 1,369,720.09, 1,890,269.40 and 757,862.89

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Solution

The fourth proportional to 1,369,720.09, 1,890,269.40 and 757,862.89 is: 1,045,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,720.09 : 1,890,269.40 = 757,862.89 : x
  2. Step 2: Convert to fraction form
    1,369,720.09/1,890,269.40 = 757,862.89/x
  3. Step 3: Cross multiply
    1,369,720.09x = 1,890,269.40 × 757,862.89
  4. Step 4: Simplify right side
    1,369,720.09x = 1,432,565,030,362.57
  5. Step 5: Solve for x
    x = 1,432,565,030,362.57/1,369,720.09
  6. Step 6: Final answer
    x = 1,045,881.59

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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.