Home / 1,398,075.35-1,929,325.60-786,227.92

Finding the Fourth Proportional to 1,398,075.35, 1,929,325.60 and 786,227.92

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Solution

The fourth proportional to 1,398,075.35, 1,929,325.60 and 786,227.92 is: 1,084,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,075.35 : 1,929,325.60 = 786,227.92 : x
  2. Step 2: Convert to fraction form
    1,398,075.35/1,929,325.60 = 786,227.92/x
  3. Step 3: Cross multiply
    1,398,075.35x = 1,929,325.60 × 786,227.92
  4. Step 4: Simplify right side
    1,398,075.35x = 1,516,889,660,502.68
  5. Step 5: Solve for x
    x = 1,516,889,660,502.68/1,398,075.35
  6. Step 6: Final answer
    x = 1,084,984.20

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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.