Home / 397,705.04-548,821.90-216,412.76

Finding the Fourth Proportional to 397,705.04, 548,821.90 and 216,412.76

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Solution

The fourth proportional to 397,705.04, 548,821.90 and 216,412.76 is: 298,643.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,705.04 : 548,821.90 = 216,412.76 : x
  2. Step 2: Convert to fraction form
    397,705.04/548,821.90 = 216,412.76/x
  3. Step 3: Cross multiply
    397,705.04x = 548,821.90 × 216,412.76
  4. Step 4: Simplify right side
    397,705.04x = 118,772,062,127.44
  5. Step 5: Solve for x
    x = 118,772,062,127.44/397,705.04
  6. Step 6: Final answer
    x = 298,643.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.