Home / 613,145.08-919,904.88-313,837.72

Finding the Fourth Proportional to 613,145.08, 919,904.88 and 313,837.72

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Solution

The fourth proportional to 613,145.08, 919,904.88 and 313,837.72 is: 470,852.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,145.08 : 919,904.88 = 313,837.72 : x
  2. Step 2: Convert to fraction form
    613,145.08/919,904.88 = 313,837.72/x
  3. Step 3: Cross multiply
    613,145.08x = 919,904.88 × 313,837.72
  4. Step 4: Simplify right side
    613,145.08x = 288,700,850,156.07
  5. Step 5: Solve for x
    x = 288,700,850,156.07/613,145.08
  6. Step 6: Final answer
    x = 470,852.43

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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.