Home / 678,904.88-936,905.22-373,001.06

Finding the Fourth Proportional to 678,904.88, 936,905.22 and 373,001.06

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Solution

The fourth proportional to 678,904.88, 936,905.22 and 373,001.06 is: 514,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,904.88 : 936,905.22 = 373,001.06 : x
  2. Step 2: Convert to fraction form
    678,904.88/936,905.22 = 373,001.06/x
  3. Step 3: Cross multiply
    678,904.88x = 936,905.22 × 373,001.06
  4. Step 4: Simplify right side
    678,904.88x = 349,466,635,495.01
  5. Step 5: Solve for x
    x = 349,466,635,495.01/678,904.88
  6. Step 6: Final answer
    x = 514,750.52

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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.