Home / 578,434.67-867,829.19-258,855.47

Finding the Fourth Proportional to 578,434.67, 867,829.19 and 258,855.47

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Solution

The fourth proportional to 578,434.67, 867,829.19 and 258,855.47 is: 388,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,434.67 : 867,829.19 = 258,855.47 : x
  2. Step 2: Convert to fraction form
    578,434.67/867,829.19 = 258,855.47/x
  3. Step 3: Cross multiply
    578,434.67x = 867,829.19 × 258,855.47
  4. Step 4: Simplify right side
    578,434.67x = 224,642,327,223.75
  5. Step 5: Solve for x
    x = 224,642,327,223.75/578,434.67
  6. Step 6: Final answer
    x = 388,362.49

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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.