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Finding the Fourth Proportional to 615,504.58, 849,393.08 and 357,445.00

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Solution

The fourth proportional to 615,504.58, 849,393.08 and 357,445.00 is: 493,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,504.58 : 849,393.08 = 357,445.00 : x
  2. Step 2: Convert to fraction form
    615,504.58/849,393.08 = 357,445.00/x
  3. Step 3: Cross multiply
    615,504.58x = 849,393.08 × 357,445.00
  4. Step 4: Simplify right side
    615,504.58x = 303,611,306,127.25
  5. Step 5: Solve for x
    x = 303,611,306,127.25/615,504.58
  6. Step 6: Final answer
    x = 493,272.21

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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.