Home / 678,904.49-936,904.70-373,000.68

Finding the Fourth Proportional to 678,904.49, 936,904.70 and 373,000.68

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Solution

The fourth proportional to 678,904.49, 936,904.70 and 373,000.68 is: 514,750.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,904.49 : 936,904.70 = 373,000.68 : x
  2. Step 2: Convert to fraction form
    678,904.49/936,904.70 = 373,000.68/x
  3. Step 3: Cross multiply
    678,904.49x = 936,904.70 × 373,000.68
  4. Step 4: Simplify right side
    678,904.49x = 349,466,088,330.19
  5. Step 5: Solve for x
    x = 349,466,088,330.19/678,904.49
  6. Step 6: Final answer
    x = 514,750.01

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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.