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Finding the Fourth Proportional to 558,054.53, 770,141.60 and 316,341.81

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Solution

The fourth proportional to 558,054.53, 770,141.60 and 316,341.81 is: 436,566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,054.53 : 770,141.60 = 316,341.81 : x
  2. Step 2: Convert to fraction form
    558,054.53/770,141.60 = 316,341.81/x
  3. Step 3: Cross multiply
    558,054.53x = 770,141.60 × 316,341.81
  4. Step 4: Simplify right side
    558,054.53x = 243,627,986,118.59
  5. Step 5: Solve for x
    x = 243,627,986,118.59/558,054.53
  6. Step 6: Final answer
    x = 436,566.63

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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.