Home / 553,000.08-828,171.30-315,623.10

Finding the Fourth Proportional to 553,000.08, 828,171.30 and 315,623.10

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Solution

The fourth proportional to 553,000.08, 828,171.30 and 315,623.10 is: 472,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,000.08 : 828,171.30 = 315,623.10 : x
  2. Step 2: Convert to fraction form
    553,000.08/828,171.30 = 315,623.10/x
  3. Step 3: Cross multiply
    553,000.08x = 828,171.30 × 315,623.10
  4. Step 4: Simplify right side
    553,000.08x = 261,389,993,037.03
  5. Step 5: Solve for x
    x = 261,389,993,037.03/553,000.08
  6. Step 6: Final answer
    x = 472,676.23

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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.