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Finding the Fourth Proportional to 615,662.40, 849,549.36 and 357,488.88

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Solution

The fourth proportional to 615,662.40, 849,549.36 and 357,488.88 is: 493,297.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,662.40 : 849,549.36 = 357,488.88 : x
  2. Step 2: Convert to fraction form
    615,662.40/849,549.36 = 357,488.88/x
  3. Step 3: Cross multiply
    615,662.40x = 849,549.36 × 357,488.88
  4. Step 4: Simplify right side
    615,662.40x = 303,704,449,211.12
  5. Step 5: Solve for x
    x = 303,704,449,211.12/615,662.40
  6. Step 6: Final answer
    x = 493,297.06

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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.