Home / 678,337.94-936,071.24-402,707.30

Finding the Fourth Proportional to 678,337.94, 936,071.24 and 402,707.30

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Solution

The fourth proportional to 678,337.94, 936,071.24 and 402,707.30 is: 555,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,337.94 : 936,071.24 = 402,707.30 : x
  2. Step 2: Convert to fraction form
    678,337.94/936,071.24 = 402,707.30/x
  3. Step 3: Cross multiply
    678,337.94x = 936,071.24 × 402,707.30
  4. Step 4: Simplify right side
    678,337.94x = 376,962,714,974.16
  5. Step 5: Solve for x
    x = 376,962,714,974.16/678,337.94
  6. Step 6: Final answer
    x = 555,715.21

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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.