Home / 719,027.69-1,078,461.86-257,387.36

Finding the Fourth Proportional to 719,027.69, 1,078,461.86 and 257,387.36

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Solution

The fourth proportional to 719,027.69, 1,078,461.86 and 257,387.36 is: 386,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,027.69 : 1,078,461.86 = 257,387.36 : x
  2. Step 2: Convert to fraction form
    719,027.69/1,078,461.86 = 257,387.36/x
  3. Step 3: Cross multiply
    719,027.69x = 1,078,461.86 × 257,387.36
  4. Step 4: Simplify right side
    719,027.69x = 277,582,444,326.84
  5. Step 5: Solve for x
    x = 277,582,444,326.84/719,027.69
  6. Step 6: Final answer
    x = 386,052.51

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1.5x scale

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.