Home / 407,864.13-611,858.43-208,075.56

Finding the Fourth Proportional to 407,864.13, 611,858.43 and 208,075.56

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Solution

The fourth proportional to 407,864.13, 611,858.43 and 208,075.56 is: 312,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,864.13 : 611,858.43 = 208,075.56 : x
  2. Step 2: Convert to fraction form
    407,864.13/611,858.43 = 208,075.56/x
  3. Step 3: Cross multiply
    407,864.13x = 611,858.43 × 208,075.56
  4. Step 4: Simplify right side
    407,864.13x = 127,312,785,462.97
  5. Step 5: Solve for x
    x = 127,312,785,462.97/407,864.13
  6. Step 6: Final answer
    x = 312,145.09

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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.