Home / 790,210.29-1,090,492.91-427,634.06

Finding the Fourth Proportional to 790,210.29, 1,090,492.91 and 427,634.06

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Solution

The fourth proportional to 790,210.29, 1,090,492.91 and 427,634.06 is: 590,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,210.29 : 1,090,492.91 = 427,634.06 : x
  2. Step 2: Convert to fraction form
    790,210.29/1,090,492.91 = 427,634.06/x
  3. Step 3: Cross multiply
    790,210.29x = 1,090,492.91 × 427,634.06
  4. Step 4: Simplify right side
    790,210.29x = 466,331,909,435.43
  5. Step 5: Solve for x
    x = 466,331,909,435.43/790,210.29
  6. Step 6: Final answer
    x = 590,136.47

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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.