Home / 981,394.40-1,470,998.10-382,156.40

Finding the Fourth Proportional to 981,394.40, 1,470,998.10 and 382,156.40

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Solution

The fourth proportional to 981,394.40, 1,470,998.10 and 382,156.40 is: 572,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,394.40 : 1,470,998.10 = 382,156.40 : x
  2. Step 2: Convert to fraction form
    981,394.40/1,470,998.10 = 382,156.40/x
  3. Step 3: Cross multiply
    981,394.40x = 1,470,998.10 × 382,156.40
  4. Step 4: Simplify right side
    981,394.40x = 562,151,338,302.84
  5. Step 5: Solve for x
    x = 562,151,338,302.84/981,394.40
  6. Step 6: Final answer
    x = 572,808.79

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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.