Home / 578,933.07-798,953.13-320,809.32

Finding the Fourth Proportional to 578,933.07, 798,953.13 and 320,809.32

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Solution

The fourth proportional to 578,933.07, 798,953.13 and 320,809.32 is: 442,730.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,933.07 : 798,953.13 = 320,809.32 : x
  2. Step 2: Convert to fraction form
    578,933.07/798,953.13 = 320,809.32/x
  3. Step 3: Cross multiply
    578,933.07x = 798,953.13 × 320,809.32
  4. Step 4: Simplify right side
    578,933.07x = 256,311,611,921.84
  5. Step 5: Solve for x
    x = 256,311,611,921.84/578,933.07
  6. Step 6: Final answer
    x = 442,730.99

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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.