Home / 1,211,590.20-1,817,404.30-358,748.40

Finding the Fourth Proportional to 1,211,590.20, 1,817,404.30 and 358,748.40

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Solution

The fourth proportional to 1,211,590.20, 1,817,404.30 and 358,748.40 is: 538,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,590.20 : 1,817,404.30 = 358,748.40 : x
  2. Step 2: Convert to fraction form
    1,211,590.20/1,817,404.30 = 358,748.40/x
  3. Step 3: Cross multiply
    1,211,590.20x = 1,817,404.30 × 358,748.40
  4. Step 4: Simplify right side
    1,211,590.20x = 651,990,884,778.12
  5. Step 5: Solve for x
    x = 651,990,884,778.12/1,211,590.20
  6. Step 6: Final answer
    x = 538,128.23

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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.