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Finding the Fourth Proportional to 751,654.71, 1,125,978.39 and 451,970.10

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Solution

The fourth proportional to 751,654.71, 1,125,978.39 and 451,970.10 is: 677,050.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,654.71 : 1,125,978.39 = 451,970.10 : x
  2. Step 2: Convert to fraction form
    751,654.71/1,125,978.39 = 451,970.10/x
  3. Step 3: Cross multiply
    751,654.71x = 1,125,978.39 × 451,970.10
  4. Step 4: Simplify right side
    751,654.71x = 508,908,565,526.14
  5. Step 5: Solve for x
    x = 508,908,565,526.14/751,654.71
  6. Step 6: Final answer
    x = 677,050.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.