Home / 578,712.18-798,899.58-385,441.32

Finding the Fourth Proportional to 578,712.18, 798,899.58 and 385,441.32

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Solution

The fourth proportional to 578,712.18, 798,899.58 and 385,441.32 is: 532,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,712.18 : 798,899.58 = 385,441.32 : x
  2. Step 2: Convert to fraction form
    578,712.18/798,899.58 = 385,441.32/x
  3. Step 3: Cross multiply
    578,712.18x = 798,899.58 × 385,441.32
  4. Step 4: Simplify right side
    578,712.18x = 307,928,908,662.65
  5. Step 5: Solve for x
    x = 307,928,908,662.65/578,712.18
  6. Step 6: Final answer
    x = 532,093.36

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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.