Home / 870,004.47-1,304,584.79-510,292.86

Finding the Fourth Proportional to 870,004.47, 1,304,584.79 and 510,292.86

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Solution

The fourth proportional to 870,004.47, 1,304,584.79 and 510,292.86 is: 765,191.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,004.47 : 1,304,584.79 = 510,292.86 : x
  2. Step 2: Convert to fraction form
    870,004.47/1,304,584.79 = 510,292.86/x
  3. Step 3: Cross multiply
    870,004.47x = 1,304,584.79 × 510,292.86
  4. Step 4: Simplify right side
    870,004.47x = 665,720,303,601.60
  5. Step 5: Solve for x
    x = 665,720,303,601.60/870,004.47
  6. Step 6: Final answer
    x = 765,191.82

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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.