Home / 665,782.32-918,554.67-379,099.43

Finding the Fourth Proportional to 665,782.32, 918,554.67 and 379,099.43

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Solution

The fourth proportional to 665,782.32, 918,554.67 and 379,099.43 is: 523,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,782.32 : 918,554.67 = 379,099.43 : x
  2. Step 2: Convert to fraction form
    665,782.32/918,554.67 = 379,099.43/x
  3. Step 3: Cross multiply
    665,782.32x = 918,554.67 × 379,099.43
  4. Step 4: Simplify right side
    665,782.32x = 348,223,547,228.07
  5. Step 5: Solve for x
    x = 348,223,547,228.07/665,782.32
  6. Step 6: Final answer
    x = 523,029.13

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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.