Home / 478,664.12-660,543.53-263,804.13

Finding the Fourth Proportional to 478,664.12, 660,543.53 and 263,804.13

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Solution

The fourth proportional to 478,664.12, 660,543.53 and 263,804.13 is: 364,042.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,664.12 : 660,543.53 = 263,804.13 : x
  2. Step 2: Convert to fraction form
    478,664.12/660,543.53 = 263,804.13/x
  3. Step 3: Cross multiply
    478,664.12x = 660,543.53 × 263,804.13
  4. Step 4: Simplify right side
    478,664.12x = 174,254,109,939.76
  5. Step 5: Solve for x
    x = 174,254,109,939.76/478,664.12
  6. Step 6: Final answer
    x = 364,042.55

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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.