Home / 1,368,875.09-1,889,012.93-757,011.57

Finding the Fourth Proportional to 1,368,875.09, 1,889,012.93 and 757,011.57

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Solution

The fourth proportional to 1,368,875.09, 1,889,012.93 and 757,011.57 is: 1,044,656.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,875.09 : 1,889,012.93 = 757,011.57 : x
  2. Step 2: Convert to fraction form
    1,368,875.09/1,889,012.93 = 757,011.57/x
  3. Step 3: Cross multiply
    1,368,875.09x = 1,889,012.93 × 757,011.57
  4. Step 4: Simplify right side
    1,368,875.09x = 1,430,004,643,889.60
  5. Step 5: Solve for x
    x = 1,430,004,643,889.60/1,368,875.09
  6. Step 6: Final answer
    x = 1,044,656.78

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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.