Home / 528,412.12-792,643.30-168,621.10

Finding the Fourth Proportional to 528,412.12, 792,643.30 and 168,621.10

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Solution

The fourth proportional to 528,412.12, 792,643.30 and 168,621.10 is: 252,939.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,412.12 : 792,643.30 = 168,621.10 : x
  2. Step 2: Convert to fraction form
    528,412.12/792,643.30 = 168,621.10/x
  3. Step 3: Cross multiply
    528,412.12x = 792,643.30 × 168,621.10
  4. Step 4: Simplify right side
    528,412.12x = 133,656,385,153.63
  5. Step 5: Solve for x
    x = 133,656,385,153.63/528,412.12
  6. Step 6: Final answer
    x = 252,939.67

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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.