Home / 558,918.51-838,501.47-203,931.50

Finding the Fourth Proportional to 558,918.51, 838,501.47 and 203,931.50

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Solution

The fourth proportional to 558,918.51, 838,501.47 and 203,931.50 is: 305,942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,918.51 : 838,501.47 = 203,931.50 : x
  2. Step 2: Convert to fraction form
    558,918.51/838,501.47 = 203,931.50/x
  3. Step 3: Cross multiply
    558,918.51x = 838,501.47 × 203,931.50
  4. Step 4: Simplify right side
    558,918.51x = 170,996,862,529.31
  5. Step 5: Solve for x
    x = 170,996,862,529.31/558,918.51
  6. Step 6: Final answer
    x = 305,942.39

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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.