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Finding the Fourth Proportional to 615,507.02, 849,396.45 and 357,447.42

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Solution

The fourth proportional to 615,507.02, 849,396.45 and 357,447.42 is: 493,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,507.02 : 849,396.45 = 357,447.42 : x
  2. Step 2: Convert to fraction form
    615,507.02/849,396.45 = 357,447.42/x
  3. Step 3: Cross multiply
    615,507.02x = 849,396.45 × 357,447.42
  4. Step 4: Simplify right side
    615,507.02x = 303,614,569,609.66
  5. Step 5: Solve for x
    x = 303,614,569,609.66/615,507.02
  6. Step 6: Final answer
    x = 493,275.56

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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.