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Finding the Fourth Proportional to 615,616.68, 849,317.22 and 373,807.56

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Solution

The fourth proportional to 615,616.68, 849,317.22 and 373,807.56 is: 515,712.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,616.68 : 849,317.22 = 373,807.56 : x
  2. Step 2: Convert to fraction form
    615,616.68/849,317.22 = 373,807.56/x
  3. Step 3: Cross multiply
    615,616.68x = 849,317.22 × 373,807.56
  4. Step 4: Simplify right side
    615,616.68x = 317,481,197,674.18
  5. Step 5: Solve for x
    x = 317,481,197,674.18/615,616.68
  6. Step 6: Final answer
    x = 515,712.47

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Double scale
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Similar ratio
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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.