Home / 528,727.72-792,442.02-208,558.21

Finding the Fourth Proportional to 528,727.72, 792,442.02 and 208,558.21

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Solution

The fourth proportional to 528,727.72, 792,442.02 and 208,558.21 is: 312,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,727.72 : 792,442.02 = 208,558.21 : x
  2. Step 2: Convert to fraction form
    528,727.72/792,442.02 = 208,558.21/x
  3. Step 3: Cross multiply
    528,727.72x = 792,442.02 × 208,558.21
  4. Step 4: Simplify right side
    528,727.72x = 165,270,289,219.98
  5. Step 5: Solve for x
    x = 165,270,289,219.98/528,727.72
  6. Step 6: Final answer
    x = 312,581.09

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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.