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Finding the Fourth Proportional to 648,603.56, 895,005 and 376,618.44

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Solution

The fourth proportional to 648,603.56, 895,005 and 376,618.44 is: 519,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,603.56 : 895,005 = 376,618.44 : x
  2. Step 2: Convert to fraction form
    648,603.56/895,005 = 376,618.44/x
  3. Step 3: Cross multiply
    648,603.56x = 895,005 × 376,618.44
  4. Step 4: Simplify right side
    648,603.56x = 337,075,386,892.20
  5. Step 5: Solve for x
    x = 337,075,386,892.20/648,603.56
  6. Step 6: Final answer
    x = 519,694.01

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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.