Home / 777,533.12-1,072,991.04-438,110.72

Finding the Fourth Proportional to 777,533.12, 1,072,991.04 and 438,110.72

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Solution

The fourth proportional to 777,533.12, 1,072,991.04 and 438,110.72 is: 604,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,533.12 : 1,072,991.04 = 438,110.72 : x
  2. Step 2: Convert to fraction form
    777,533.12/1,072,991.04 = 438,110.72/x
  3. Step 3: Cross multiply
    777,533.12x = 1,072,991.04 × 438,110.72
  4. Step 4: Simplify right side
    777,533.12x = 470,088,877,087.95
  5. Step 5: Solve for x
    x = 470,088,877,087.95/777,533.12
  6. Step 6: Final answer
    x = 604,590.16

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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.