Home / 696,054.40-1,044,081.60-428,948.80

Finding the Fourth Proportional to 696,054.40, 1,044,081.60 and 428,948.80

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Solution

The fourth proportional to 696,054.40, 1,044,081.60 and 428,948.80 is: 643,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,054.40 : 1,044,081.60 = 428,948.80 : x
  2. Step 2: Convert to fraction form
    696,054.40/1,044,081.60 = 428,948.80/x
  3. Step 3: Cross multiply
    696,054.40x = 1,044,081.60 × 428,948.80
  4. Step 4: Simplify right side
    696,054.40x = 447,857,549,422.08
  5. Step 5: Solve for x
    x = 447,857,549,422.08/696,054.40
  6. Step 6: Final answer
    x = 643,423.20

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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.