Home / 1,404,438.40-2,106,657.60-865,124.20

Finding the Fourth Proportional to 1,404,438.40, 2,106,657.60 and 865,124.20

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Solution

The fourth proportional to 1,404,438.40, 2,106,657.60 and 865,124.20 is: 1,297,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,438.40 : 2,106,657.60 = 865,124.20 : x
  2. Step 2: Convert to fraction form
    1,404,438.40/2,106,657.60 = 865,124.20/x
  3. Step 3: Cross multiply
    1,404,438.40x = 2,106,657.60 × 865,124.20
  4. Step 4: Simplify right side
    1,404,438.40x = 1,822,520,470,873.92
  5. Step 5: Solve for x
    x = 1,822,520,470,873.92/1,404,438.40
  6. Step 6: Final answer
    x = 1,297,686.30

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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.