Home / 899,244.32-1,240,942.74-491,337.32

Finding the Fourth Proportional to 899,244.32, 1,240,942.74 and 491,337.32

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Solution

The fourth proportional to 899,244.32, 1,240,942.74 and 491,337.32 is: 678,037.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,244.32 : 1,240,942.74 = 491,337.32 : x
  2. Step 2: Convert to fraction form
    899,244.32/1,240,942.74 = 491,337.32/x
  3. Step 3: Cross multiply
    899,244.32x = 1,240,942.74 × 491,337.32
  4. Step 4: Simplify right side
    899,244.32x = 609,721,480,145.06
  5. Step 5: Solve for x
    x = 609,721,480,145.06/899,244.32
  6. Step 6: Final answer
    x = 678,037.62

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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.