Home / 1,788,121.20-2,681,258.40-525,784.80

Finding the Fourth Proportional to 1,788,121.20, 2,681,258.40 and 525,784.80

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Solution

The fourth proportional to 1,788,121.20, 2,681,258.40 and 525,784.80 is: 788,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,121.20 : 2,681,258.40 = 525,784.80 : x
  2. Step 2: Convert to fraction form
    1,788,121.20/2,681,258.40 = 525,784.80/x
  3. Step 3: Cross multiply
    1,788,121.20x = 2,681,258.40 × 525,784.80
  4. Step 4: Simplify right side
    1,788,121.20x = 1,409,764,911,592.32
  5. Step 5: Solve for x
    x = 1,409,764,911,592.32/1,788,121.20
  6. Step 6: Final answer
    x = 788,405.68

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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.