Home / 1,423,929.60-2,135,894.40-426,657.60

Finding the Fourth Proportional to 1,423,929.60, 2,135,894.40 and 426,657.60

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Solution

The fourth proportional to 1,423,929.60, 2,135,894.40 and 426,657.60 is: 639,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,929.60 : 2,135,894.40 = 426,657.60 : x
  2. Step 2: Convert to fraction form
    1,423,929.60/2,135,894.40 = 426,657.60/x
  3. Step 3: Cross multiply
    1,423,929.60x = 2,135,894.40 × 426,657.60
  4. Step 4: Simplify right side
    1,423,929.60x = 911,295,578,557.44
  5. Step 5: Solve for x
    x = 911,295,578,557.44/1,423,929.60
  6. Step 6: Final answer
    x = 639,986.40

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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.