Home / 390,674.07-585,623.14-221,844.96

Finding the Fourth Proportional to 390,674.07, 585,623.14 and 221,844.96

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Solution

The fourth proportional to 390,674.07, 585,623.14 and 221,844.96 is: 332,547.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,674.07 : 585,623.14 = 221,844.96 : x
  2. Step 2: Convert to fraction form
    390,674.07/585,623.14 = 221,844.96/x
  3. Step 3: Cross multiply
    390,674.07x = 585,623.14 × 221,844.96
  4. Step 4: Simplify right side
    390,674.07x = 129,917,541,513.76
  5. Step 5: Solve for x
    x = 129,917,541,513.76/390,674.07
  6. Step 6: Final answer
    x = 332,547.13

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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.