Home / 696,088.40-1,044,132.60-428,982.80

Finding the Fourth Proportional to 696,088.40, 1,044,132.60 and 428,982.80

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Solution

The fourth proportional to 696,088.40, 1,044,132.60 and 428,982.80 is: 643,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,088.40 : 1,044,132.60 = 428,982.80 : x
  2. Step 2: Convert to fraction form
    696,088.40/1,044,132.60 = 428,982.80/x
  3. Step 3: Cross multiply
    696,088.40x = 1,044,132.60 × 428,982.80
  4. Step 4: Simplify right side
    696,088.40x = 447,914,926,319.28
  5. Step 5: Solve for x
    x = 447,914,926,319.28/696,088.40
  6. Step 6: Final answer
    x = 643,474.20

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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.