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Finding the Fourth Proportional to 615,905.19, 849,973.38 and 354,260.01

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Solution

The fourth proportional to 615,905.19, 849,973.38 and 354,260.01 is: 488,892.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,905.19 : 849,973.38 = 354,260.01 : x
  2. Step 2: Convert to fraction form
    615,905.19/849,973.38 = 354,260.01/x
  3. Step 3: Cross multiply
    615,905.19x = 849,973.38 × 354,260.01
  4. Step 4: Simplify right side
    615,905.19x = 301,111,578,098.53
  5. Step 5: Solve for x
    x = 301,111,578,098.53/615,905.19
  6. Step 6: Final answer
    x = 488,892.74

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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.