Home / 790,210.50-1,090,490.43-427,634.36

Finding the Fourth Proportional to 790,210.50, 1,090,490.43 and 427,634.36

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Solution

The fourth proportional to 790,210.50, 1,090,490.43 and 427,634.36 is: 590,135.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,210.50 : 1,090,490.43 = 427,634.36 : x
  2. Step 2: Convert to fraction form
    790,210.50/1,090,490.43 = 427,634.36/x
  3. Step 3: Cross multiply
    790,210.50x = 1,090,490.43 × 427,634.36
  4. Step 4: Simplify right side
    790,210.50x = 466,331,177,119.18
  5. Step 5: Solve for x
    x = 466,331,177,119.18/790,210.50
  6. Step 6: Final answer
    x = 590,135.38

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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.