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Finding the Fourth Proportional to 615,322.15, 849,187.19 and 343,443.08

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Solution

The fourth proportional to 615,322.15, 849,187.19 and 343,443.08 is: 473,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,322.15 : 849,187.19 = 343,443.08 : x
  2. Step 2: Convert to fraction form
    615,322.15/849,187.19 = 343,443.08/x
  3. Step 3: Cross multiply
    615,322.15x = 849,187.19 × 343,443.08
  4. Step 4: Simplify right side
    615,322.15x = 291,647,462,312.93
  5. Step 5: Solve for x
    x = 291,647,462,312.93/615,322.15
  6. Step 6: Final answer
    x = 473,975.24

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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.