Home / 698,980.68-1,046,789.40-398,550.47

Finding the Fourth Proportional to 698,980.68, 1,046,789.40 and 398,550.47

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Solution

The fourth proportional to 698,980.68, 1,046,789.40 and 398,550.47 is: 596,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,980.68 : 1,046,789.40 = 398,550.47 : x
  2. Step 2: Convert to fraction form
    698,980.68/1,046,789.40 = 398,550.47/x
  3. Step 3: Cross multiply
    698,980.68x = 1,046,789.40 × 398,550.47
  4. Step 4: Simplify right side
    698,980.68x = 417,198,402,127.07
  5. Step 5: Solve for x
    x = 417,198,402,127.07/698,980.68
  6. Step 6: Final answer
    x = 596,866.86

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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.