Home / 648,421.21-895,011.31-376,611.28

Finding the Fourth Proportional to 648,421.21, 895,011.31 and 376,611.28

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Solution

The fourth proportional to 648,421.21, 895,011.31 and 376,611.28 is: 519,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,421.21 : 895,011.31 = 376,611.28 : x
  2. Step 2: Convert to fraction form
    648,421.21/895,011.31 = 376,611.28/x
  3. Step 3: Cross multiply
    648,421.21x = 895,011.31 × 376,611.28
  4. Step 4: Simplify right side
    648,421.21x = 337,071,355,073.58
  5. Step 5: Solve for x
    x = 337,071,355,073.58/648,421.21
  6. Step 6: Final answer
    x = 519,833.94

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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.