Home / 478,261.41-659,987.29-260,465.17

Finding the Fourth Proportional to 478,261.41, 659,987.29 and 260,465.17

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Solution

The fourth proportional to 478,261.41, 659,987.29 and 260,465.17 is: 359,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,261.41 : 659,987.29 = 260,465.17 : x
  2. Step 2: Convert to fraction form
    478,261.41/659,987.29 = 260,465.17/x
  3. Step 3: Cross multiply
    478,261.41x = 659,987.29 × 260,465.17
  4. Step 4: Simplify right side
    478,261.41x = 171,903,701,600.78
  5. Step 5: Solve for x
    x = 171,903,701,600.78/478,261.41
  6. Step 6: Final answer
    x = 359,434.60

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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.