Home / 992,456.80-1,489,122.60-459,703.60

Finding the Fourth Proportional to 992,456.80, 1,489,122.60 and 459,703.60

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Solution

The fourth proportional to 992,456.80, 1,489,122.60 and 459,703.60 is: 689,758.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,456.80 : 1,489,122.60 = 459,703.60 : x
  2. Step 2: Convert to fraction form
    992,456.80/1,489,122.60 = 459,703.60/x
  3. Step 3: Cross multiply
    992,456.80x = 1,489,122.60 × 459,703.60
  4. Step 4: Simplify right side
    992,456.80x = 684,555,020,061.36
  5. Step 5: Solve for x
    x = 684,555,020,061.36/992,456.80
  6. Step 6: Final answer
    x = 689,758.00

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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.