Home / 487,036.32-671,674.89-305,765.16

Finding the Fourth Proportional to 487,036.32, 671,674.89 and 305,765.16

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Solution

The fourth proportional to 487,036.32, 671,674.89 and 305,765.16 is: 421,682.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,036.32 : 671,674.89 = 305,765.16 : x
  2. Step 2: Convert to fraction form
    487,036.32/671,674.89 = 305,765.16/x
  3. Step 3: Cross multiply
    487,036.32x = 671,674.89 × 305,765.16
  4. Step 4: Simplify right side
    487,036.32x = 205,374,780,208.83
  5. Step 5: Solve for x
    x = 205,374,780,208.83/487,036.32
  6. Step 6: Final answer
    x = 421,682.68

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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.