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Finding the Fourth Proportional to 603,071.16, 832,068.36 and 388,335.48

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Solution

The fourth proportional to 603,071.16, 832,068.36 and 388,335.48 is: 535,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,071.16 : 832,068.36 = 388,335.48 : x
  2. Step 2: Convert to fraction form
    603,071.16/832,068.36 = 388,335.48/x
  3. Step 3: Cross multiply
    603,071.16x = 832,068.36 × 388,335.48
  4. Step 4: Simplify right side
    603,071.16x = 323,121,665,973.41
  5. Step 5: Solve for x
    x = 323,121,665,973.41/603,071.16
  6. Step 6: Final answer
    x = 535,793.60

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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.