Home / 678,829-936,784.02-377,051.08

Finding the Fourth Proportional to 678,829, 936,784.02 and 377,051.08

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Solution

The fourth proportional to 678,829, 936,784.02 and 377,051.08 is: 520,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,829 : 936,784.02 = 377,051.08 : x
  2. Step 2: Convert to fraction form
    678,829/936,784.02 = 377,051.08/x
  3. Step 3: Cross multiply
    678,829x = 936,784.02 × 377,051.08
  4. Step 4: Simplify right side
    678,829x = 353,215,426,467.74
  5. Step 5: Solve for x
    x = 353,215,426,467.74/678,829
  6. Step 6: Final answer
    x = 520,330.49

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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.