Home / 1,391,311.15-2,083,423.55-916,557.19

Finding the Fourth Proportional to 1,391,311.15, 2,083,423.55 and 916,557.19

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Solution

The fourth proportional to 1,391,311.15, 2,083,423.55 and 916,557.19 is: 1,372,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,311.15 : 2,083,423.55 = 916,557.19 : x
  2. Step 2: Convert to fraction form
    1,391,311.15/2,083,423.55 = 916,557.19/x
  3. Step 3: Cross multiply
    1,391,311.15x = 2,083,423.55 × 916,557.19
  4. Step 4: Simplify right side
    1,391,311.15x = 1,909,576,824,776.48
  5. Step 5: Solve for x
    x = 1,909,576,824,776.48/1,391,311.15
  6. Step 6: Final answer
    x = 1,372,501.64

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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.