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Finding the Fourth Proportional to 615,837.06, 849,086.49 and 470,822.55

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Solution

The fourth proportional to 615,837.06, 849,086.49 and 470,822.55 is: 649,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,837.06 : 849,086.49 = 470,822.55 : x
  2. Step 2: Convert to fraction form
    615,837.06/849,086.49 = 470,822.55/x
  3. Step 3: Cross multiply
    615,837.06x = 849,086.49 × 470,822.55
  4. Step 4: Simplify right side
    615,837.06x = 399,769,066,392.35
  5. Step 5: Solve for x
    x = 399,769,066,392.35/615,837.06
  6. Step 6: Final answer
    x = 649,147.47

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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.