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Finding the Fourth Proportional to 615,506.64, 849,395.92 and 357,447.04

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Solution

The fourth proportional to 615,506.64, 849,395.92 and 357,447.04 is: 493,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,506.64 : 849,395.92 = 357,447.04 : x
  2. Step 2: Convert to fraction form
    615,506.64/849,395.92 = 357,447.04/x
  3. Step 3: Cross multiply
    615,506.64x = 849,395.92 × 357,447.04
  4. Step 4: Simplify right side
    615,506.64x = 303,614,057,392.08
  5. Step 5: Solve for x
    x = 303,614,057,392.08/615,506.64
  6. Step 6: Final answer
    x = 493,275.03

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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.