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Finding the Fourth Proportional to 615,206.07, 849,004.74 and 357,063.66

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Solution

The fourth proportional to 615,206.07, 849,004.74 and 357,063.66 is: 492,759.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,206.07 : 849,004.74 = 357,063.66 : x
  2. Step 2: Convert to fraction form
    615,206.07/849,004.74 = 357,063.66/x
  3. Step 3: Cross multiply
    615,206.07x = 849,004.74 × 357,063.66
  4. Step 4: Simplify right side
    615,206.07x = 303,148,739,821.75
  5. Step 5: Solve for x
    x = 303,148,739,821.75/615,206.07
  6. Step 6: Final answer
    x = 492,759.67

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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.