Home / 528,475.12-792,705.77-129,119.35

Finding the Fourth Proportional to 528,475.12, 792,705.77 and 129,119.35

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Solution

The fourth proportional to 528,475.12, 792,705.77 and 129,119.35 is: 193,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,475.12 : 792,705.77 = 129,119.35 : x
  2. Step 2: Convert to fraction form
    528,475.12/792,705.77 = 129,119.35/x
  3. Step 3: Cross multiply
    528,475.12x = 792,705.77 × 129,119.35
  4. Step 4: Simplify right side
    528,475.12x = 102,353,651,136.29
  5. Step 5: Solve for x
    x = 102,353,651,136.29/528,475.12
  6. Step 6: Final answer
    x = 193,677.33

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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.