Home / 648,422.21-895,012.69-376,612.28

Finding the Fourth Proportional to 648,422.21, 895,012.69 and 376,612.28

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Solution

The fourth proportional to 648,422.21, 895,012.69 and 376,612.28 is: 519,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,422.21 : 895,012.69 = 376,612.28 : x
  2. Step 2: Convert to fraction form
    648,422.21/895,012.69 = 376,612.28/x
  3. Step 3: Cross multiply
    648,422.21x = 895,012.69 × 376,612.28
  4. Step 4: Simplify right side
    648,422.21x = 337,072,769,809.83
  5. Step 5: Solve for x
    x = 337,072,769,809.83/648,422.21
  6. Step 6: Final answer
    x = 519,835.32

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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.