Home / 899,965.59-1,242,029.16-512,899.40

Finding the Fourth Proportional to 899,965.59, 1,242,029.16 and 512,899.40

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Solution

The fourth proportional to 899,965.59, 1,242,029.16 and 512,899.40 is: 707,844.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,965.59 : 1,242,029.16 = 512,899.40 : x
  2. Step 2: Convert to fraction form
    899,965.59/1,242,029.16 = 512,899.40/x
  3. Step 3: Cross multiply
    899,965.59x = 1,242,029.16 × 512,899.40
  4. Step 4: Simplify right side
    899,965.59x = 637,036,004,736.36
  5. Step 5: Solve for x
    x = 637,036,004,736.36/899,965.59
  6. Step 6: Final answer
    x = 707,844.85

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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.