Home / 651,081.96-898,176.12-421,573.32

Finding the Fourth Proportional to 651,081.96, 898,176.12 and 421,573.32

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Solution

The fourth proportional to 651,081.96, 898,176.12 and 421,573.32 is: 581,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,081.96 : 898,176.12 = 421,573.32 : x
  2. Step 2: Convert to fraction form
    651,081.96/898,176.12 = 421,573.32/x
  3. Step 3: Cross multiply
    651,081.96x = 898,176.12 × 421,573.32
  4. Step 4: Simplify right side
    651,081.96x = 378,647,088,853.12
  5. Step 5: Solve for x
    x = 378,647,088,853.12/651,081.96
  6. Step 6: Final answer
    x = 581,565.94

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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.