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Finding the Fourth Proportional to 677,973.55, 935,614.98 and 372,078.39

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Solution

The fourth proportional to 677,973.55, 935,614.98 and 372,078.39 is: 513,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,973.55 : 935,614.98 = 372,078.39 : x
  2. Step 2: Convert to fraction form
    677,973.55/935,614.98 = 372,078.39/x
  3. Step 3: Cross multiply
    677,973.55x = 935,614.98 × 372,078.39
  4. Step 4: Simplify right side
    677,973.55x = 348,122,115,418.28
  5. Step 5: Solve for x
    x = 348,122,115,418.28/677,973.55
  6. Step 6: Final answer
    x = 513,474.48

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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.