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Finding the Fourth Proportional to 615,213.57, 849,015.09 and 357,071.16

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Solution

The fourth proportional to 615,213.57, 849,015.09 and 357,071.16 is: 492,770.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,213.57 : 849,015.09 = 357,071.16 : x
  2. Step 2: Convert to fraction form
    615,213.57/849,015.09 = 357,071.16/x
  3. Step 3: Cross multiply
    615,213.57x = 849,015.09 × 357,071.16
  4. Step 4: Simplify right side
    615,213.57x = 303,158,803,043.80
  5. Step 5: Solve for x
    x = 303,158,803,043.80/615,213.57
  6. Step 6: Final answer
    x = 492,770.02

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1.5x scale

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.