Home / 877,350.42-1,316,025.48-478,326.75

Finding the Fourth Proportional to 877,350.42, 1,316,025.48 and 478,326.75

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Solution

The fourth proportional to 877,350.42, 1,316,025.48 and 478,326.75 is: 717,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,350.42 : 1,316,025.48 = 478,326.75 : x
  2. Step 2: Convert to fraction form
    877,350.42/1,316,025.48 = 478,326.75/x
  3. Step 3: Cross multiply
    877,350.42x = 1,316,025.48 × 478,326.75
  4. Step 4: Simplify right side
    877,350.42x = 629,490,190,765.59
  5. Step 5: Solve for x
    x = 629,490,190,765.59/877,350.42
  6. Step 6: Final answer
    x = 717,490.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.