Home / 918,347.43-1,377,621.60-311,573.84

Finding the Fourth Proportional to 918,347.43, 1,377,621.60 and 311,573.84

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Solution

The fourth proportional to 918,347.43, 1,377,621.60 and 311,573.84 is: 467,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,347.43 : 1,377,621.60 = 311,573.84 : x
  2. Step 2: Convert to fraction form
    918,347.43/1,377,621.60 = 311,573.84/x
  3. Step 3: Cross multiply
    918,347.43x = 1,377,621.60 × 311,573.84
  4. Step 4: Simplify right side
    918,347.43x = 429,230,845,090.84
  5. Step 5: Solve for x
    x = 429,230,845,090.84/918,347.43
  6. Step 6: Final answer
    x = 467,394.84

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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.