Home / 1,051,915.20-1,578,909.60-520,036.80

Finding the Fourth Proportional to 1,051,915.20, 1,578,909.60 and 520,036.80

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Solution

The fourth proportional to 1,051,915.20, 1,578,909.60 and 520,036.80 is: 780,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,915.20 : 1,578,909.60 = 520,036.80 : x
  2. Step 2: Convert to fraction form
    1,051,915.20/1,578,909.60 = 520,036.80/x
  3. Step 3: Cross multiply
    1,051,915.20x = 1,578,909.60 × 520,036.80
  4. Step 4: Simplify right side
    1,051,915.20x = 821,091,095,873.28
  5. Step 5: Solve for x
    x = 821,091,095,873.28/1,051,915.20
  6. Step 6: Final answer
    x = 780,567.76

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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.