Home / 397,639.35-596,721.47-210,782.07

Finding the Fourth Proportional to 397,639.35, 596,721.47 and 210,782.07

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Solution

The fourth proportional to 397,639.35, 596,721.47 and 210,782.07 is: 316,312.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,639.35 : 596,721.47 = 210,782.07 : x
  2. Step 2: Convert to fraction form
    397,639.35/596,721.47 = 210,782.07/x
  3. Step 3: Cross multiply
    397,639.35x = 596,721.47 × 210,782.07
  4. Step 4: Simplify right side
    397,639.35x = 125,778,186,660.04
  5. Step 5: Solve for x
    x = 125,778,186,660.04/397,639.35
  6. Step 6: Final answer
    x = 316,312.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.