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Finding the Fourth Proportional to 615,004.58, 848,707.54 and 343,065.40

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Solution

The fourth proportional to 615,004.58, 848,707.54 and 343,065.40 is: 473,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,004.58 : 848,707.54 = 343,065.40 : x
  2. Step 2: Convert to fraction form
    615,004.58/848,707.54 = 343,065.40/x
  3. Step 3: Cross multiply
    615,004.58x = 848,707.54 × 343,065.40
  4. Step 4: Simplify right side
    615,004.58x = 291,162,188,713.68
  5. Step 5: Solve for x
    x = 291,162,188,713.68/615,004.58
  6. Step 6: Final answer
    x = 473,430.93

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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.