Home / 879,276.42-1,213,409.61-516,708.18

Finding the Fourth Proportional to 879,276.42, 1,213,409.61 and 516,708.18

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Solution

The fourth proportional to 879,276.42, 1,213,409.61 and 516,708.18 is: 713,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,276.42 : 1,213,409.61 = 516,708.18 : x
  2. Step 2: Convert to fraction form
    879,276.42/1,213,409.61 = 516,708.18/x
  3. Step 3: Cross multiply
    879,276.42x = 1,213,409.61 × 516,708.18
  4. Step 4: Simplify right side
    879,276.42x = 626,978,671,177.61
  5. Step 5: Solve for x
    x = 626,978,671,177.61/879,276.42
  6. Step 6: Final answer
    x = 713,062.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.