Home / 493,045.07-680,434.29-278,106.71

Finding the Fourth Proportional to 493,045.07, 680,434.29 and 278,106.71

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Solution

The fourth proportional to 493,045.07, 680,434.29 and 278,106.71 is: 383,805.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,045.07 : 680,434.29 = 278,106.71 : x
  2. Step 2: Convert to fraction form
    493,045.07/680,434.29 = 278,106.71/x
  3. Step 3: Cross multiply
    493,045.07x = 680,434.29 × 278,106.71
  4. Step 4: Simplify right side
    493,045.07x = 189,233,338,360.91
  5. Step 5: Solve for x
    x = 189,233,338,360.91/493,045.07
  6. Step 6: Final answer
    x = 383,805.36

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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.