Home / 678,316.35-936,087.53-372,420.93

Finding the Fourth Proportional to 678,316.35, 936,087.53 and 372,420.93

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Solution

The fourth proportional to 678,316.35, 936,087.53 and 372,420.93 is: 513,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,316.35 : 936,087.53 = 372,420.93 : x
  2. Step 2: Convert to fraction form
    678,316.35/936,087.53 = 372,420.93/x
  3. Step 3: Cross multiply
    678,316.35x = 936,087.53 × 372,420.93
  4. Step 4: Simplify right side
    678,316.35x = 348,618,588,484.00
  5. Step 5: Solve for x
    x = 348,618,588,484.00/678,316.35
  6. Step 6: Final answer
    x = 513,946.90

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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.