Home / 670,647.48-1,005,956.64-315,464.64

Finding the Fourth Proportional to 670,647.48, 1,005,956.64 and 315,464.64

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Solution

The fourth proportional to 670,647.48, 1,005,956.64 and 315,464.64 is: 473,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,647.48 : 1,005,956.64 = 315,464.64 : x
  2. Step 2: Convert to fraction form
    670,647.48/1,005,956.64 = 315,464.64/x
  3. Step 3: Cross multiply
    670,647.48x = 1,005,956.64 × 315,464.64
  4. Step 4: Simplify right side
    670,647.48x = 317,343,749,293.21
  5. Step 5: Solve for x
    x = 317,343,749,293.21/670,647.48
  6. Step 6: Final answer
    x = 473,190.10

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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.