Home / 559,979.20-839,968.80-371,022.40

Finding the Fourth Proportional to 559,979.20, 839,968.80 and 371,022.40

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Solution

The fourth proportional to 559,979.20, 839,968.80 and 371,022.40 is: 556,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,979.20 : 839,968.80 = 371,022.40 : x
  2. Step 2: Convert to fraction form
    559,979.20/839,968.80 = 371,022.40/x
  3. Step 3: Cross multiply
    559,979.20x = 839,968.80 × 371,022.40
  4. Step 4: Simplify right side
    559,979.20x = 311,647,240,101.12
  5. Step 5: Solve for x
    x = 311,647,240,101.12/559,979.20
  6. Step 6: Final answer
    x = 556,533.60

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Similar ratio
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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.