Home / 790,418.49-1,090,798.72-480,215.49

Finding the Fourth Proportional to 790,418.49, 1,090,798.72 and 480,215.49

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Solution

The fourth proportional to 790,418.49, 1,090,798.72 and 480,215.49 is: 662,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,418.49 : 1,090,798.72 = 480,215.49 : x
  2. Step 2: Convert to fraction form
    790,418.49/1,090,798.72 = 480,215.49/x
  3. Step 3: Cross multiply
    790,418.49x = 1,090,798.72 × 480,215.49
  4. Step 4: Simplify right side
    790,418.49x = 523,818,436,525.14
  5. Step 5: Solve for x
    x = 523,818,436,525.14/790,418.49
  6. Step 6: Final answer
    x = 662,710.25

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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.