Home / 351,605.05-527,075.40-319,386.44

Finding the Fourth Proportional to 351,605.05, 527,075.40 and 319,386.44

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Solution

The fourth proportional to 351,605.05, 527,075.40 and 319,386.44 is: 478,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,605.05 : 527,075.40 = 319,386.44 : x
  2. Step 2: Convert to fraction form
    351,605.05/527,075.40 = 319,386.44/x
  3. Step 3: Cross multiply
    351,605.05x = 527,075.40 × 319,386.44
  4. Step 4: Simplify right side
    351,605.05x = 168,340,738,132.96
  5. Step 5: Solve for x
    x = 168,340,738,132.96/351,605.05
  6. Step 6: Final answer
    x = 478,777.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.