Home / 487,600.98-672,907.74-272,740.38

Finding the Fourth Proportional to 487,600.98, 672,907.74 and 272,740.38

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Solution

The fourth proportional to 487,600.98, 672,907.74 and 272,740.38 is: 376,392.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,600.98 : 672,907.74 = 272,740.38 : x
  2. Step 2: Convert to fraction form
    487,600.98/672,907.74 = 272,740.38/x
  3. Step 3: Cross multiply
    487,600.98x = 672,907.74 × 272,740.38
  4. Step 4: Simplify right side
    487,600.98x = 183,529,112,712.54
  5. Step 5: Solve for x
    x = 183,529,112,712.54/487,600.98
  6. Step 6: Final answer
    x = 376,392.01

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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.