Home / 385,983.60-578,629.80-252,927.60

Finding the Fourth Proportional to 385,983.60, 578,629.80 and 252,927.60

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Solution

The fourth proportional to 385,983.60, 578,629.80 and 252,927.60 is: 379,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,983.60 : 578,629.80 = 252,927.60 : x
  2. Step 2: Convert to fraction form
    385,983.60/578,629.80 = 252,927.60/x
  3. Step 3: Cross multiply
    385,983.60x = 578,629.80 × 252,927.60
  4. Step 4: Simplify right side
    385,983.60x = 146,351,446,602.48
  5. Step 5: Solve for x
    x = 146,351,446,602.48/385,983.60
  6. Step 6: Final answer
    x = 379,164.93

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1.5x scale

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.