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Finding the Fourth Proportional to 615,340.74, 849,247.53 and 357,162.15

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Solution

The fourth proportional to 615,340.74, 849,247.53 and 357,162.15 is: 492,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,340.74 : 849,247.53 = 357,162.15 : x
  2. Step 2: Convert to fraction form
    615,340.74/849,247.53 = 357,162.15/x
  3. Step 3: Cross multiply
    615,340.74x = 849,247.53 × 357,162.15
  4. Step 4: Simplify right side
    615,340.74x = 303,319,073,696.99
  5. Step 5: Solve for x
    x = 303,319,073,696.99/615,340.74
  6. Step 6: Final answer
    x = 492,928.64

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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.