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Finding the Fourth Proportional to 615,130.88, 848,886.72 and 343,196.48

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Solution

The fourth proportional to 615,130.88, 848,886.72 and 343,196.48 is: 473,614.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,130.88 : 848,886.72 = 343,196.48 : x
  2. Step 2: Convert to fraction form
    615,130.88/848,886.72 = 343,196.48/x
  3. Step 3: Cross multiply
    615,130.88x = 848,886.72 × 343,196.48
  4. Step 4: Simplify right side
    615,130.88x = 291,334,934,222.75
  5. Step 5: Solve for x
    x = 291,334,934,222.75/615,130.88
  6. Step 6: Final answer
    x = 473,614.55

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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.