Home / 698,978.80-1,046,786.59-398,548.59

Finding the Fourth Proportional to 698,978.80, 1,046,786.59 and 398,548.59

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Solution

The fourth proportional to 698,978.80, 1,046,786.59 and 398,548.59 is: 596,864.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,978.80 : 1,046,786.59 = 398,548.59 : x
  2. Step 2: Convert to fraction form
    698,978.80/1,046,786.59 = 398,548.59/x
  3. Step 3: Cross multiply
    698,978.80x = 1,046,786.59 × 398,548.59
  4. Step 4: Simplify right side
    698,978.80x = 417,195,316,048.14
  5. Step 5: Solve for x
    x = 417,195,316,048.14/698,978.80
  6. Step 6: Final answer
    x = 596,864.05

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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.