Home / 1,398,953.36-2,098,430.08-388,075.39

Finding the Fourth Proportional to 1,398,953.36, 2,098,430.08 and 388,075.39

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Solution

The fourth proportional to 1,398,953.36, 2,098,430.08 and 388,075.39 is: 582,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,953.36 : 2,098,430.08 = 388,075.39 : x
  2. Step 2: Convert to fraction form
    1,398,953.36/2,098,430.08 = 388,075.39/x
  3. Step 3: Cross multiply
    1,398,953.36x = 2,098,430.08 × 388,075.39
  4. Step 4: Simplify right side
    1,398,953.36x = 814,349,065,467.47
  5. Step 5: Solve for x
    x = 814,349,065,467.47/1,398,953.36
  6. Step 6: Final answer
    x = 582,113.09

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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.