Home / 1,438,121.72-1,984,605.64-793,541.40

Finding the Fourth Proportional to 1,438,121.72, 1,984,605.64 and 793,541.40

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Solution

The fourth proportional to 1,438,121.72, 1,984,605.64 and 793,541.40 is: 1,095,085.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,121.72 : 1,984,605.64 = 793,541.40 : x
  2. Step 2: Convert to fraction form
    1,438,121.72/1,984,605.64 = 793,541.40/x
  3. Step 3: Cross multiply
    1,438,121.72x = 1,984,605.64 × 793,541.40
  4. Step 4: Simplify right side
    1,438,121.72x = 1,574,866,738,013.50
  5. Step 5: Solve for x
    x = 1,574,866,738,013.50/1,438,121.72
  6. Step 6: Final answer
    x = 1,095,085.84

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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.