Home / 790,455.07-1,090,828.52-427,881.91

Finding the Fourth Proportional to 790,455.07, 1,090,828.52 and 427,881.91

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Solution

The fourth proportional to 790,455.07, 1,090,828.52 and 427,881.91 is: 590,477.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,455.07 : 1,090,828.52 = 427,881.91 : x
  2. Step 2: Convert to fraction form
    790,455.07/1,090,828.52 = 427,881.91/x
  3. Step 3: Cross multiply
    790,455.07x = 1,090,828.52 × 427,881.91
  4. Step 4: Simplify right side
    790,455.07x = 466,745,790,620.07
  5. Step 5: Solve for x
    x = 466,745,790,620.07/790,455.07
  6. Step 6: Final answer
    x = 590,477.32

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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.