Home / 558,743.40-838,130.49-204,021.72

Finding the Fourth Proportional to 558,743.40, 838,130.49 and 204,021.72

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Solution

The fourth proportional to 558,743.40, 838,130.49 and 204,021.72 is: 306,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,743.40 : 838,130.49 = 204,021.72 : x
  2. Step 2: Convert to fraction form
    558,743.40/838,130.49 = 204,021.72/x
  3. Step 3: Cross multiply
    558,743.40x = 838,130.49 × 204,021.72
  4. Step 4: Simplify right side
    558,743.40x = 170,996,824,154.24
  5. Step 5: Solve for x
    x = 170,996,824,154.24/558,743.40
  6. Step 6: Final answer
    x = 306,038.20

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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.