Home / 961,613.60-1,326,609.78-579,423.20

Finding the Fourth Proportional to 961,613.60, 1,326,609.78 and 579,423.20

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Solution

The fourth proportional to 961,613.60, 1,326,609.78 and 579,423.20 is: 799,352.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,613.60 : 1,326,609.78 = 579,423.20 : x
  2. Step 2: Convert to fraction form
    961,613.60/1,326,609.78 = 579,423.20/x
  3. Step 3: Cross multiply
    961,613.60x = 1,326,609.78 × 579,423.20
  4. Step 4: Simplify right side
    961,613.60x = 768,668,483,878.90
  5. Step 5: Solve for x
    x = 768,668,483,878.90/961,613.60
  6. Step 6: Final answer
    x = 799,352.76

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1.5x scale

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.