Home / 703,614.28-971,036.30-428,079.64

Finding the Fourth Proportional to 703,614.28, 971,036.30 and 428,079.64

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Solution

The fourth proportional to 703,614.28, 971,036.30 and 428,079.64 is: 590,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,614.28 : 971,036.30 = 428,079.64 : x
  2. Step 2: Convert to fraction form
    703,614.28/971,036.30 = 428,079.64/x
  3. Step 3: Cross multiply
    703,614.28x = 971,036.30 × 428,079.64
  4. Step 4: Simplify right side
    703,614.28x = 415,680,869,730.93
  5. Step 5: Solve for x
    x = 415,680,869,730.93/703,614.28
  6. Step 6: Final answer
    x = 590,779.47

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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.