Home / 1,087,905.80-1,630,476.30-525,729.80

Finding the Fourth Proportional to 1,087,905.80, 1,630,476.30 and 525,729.80

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Solution

The fourth proportional to 1,087,905.80, 1,630,476.30 and 525,729.80 is: 787,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,905.80 : 1,630,476.30 = 525,729.80 : x
  2. Step 2: Convert to fraction form
    1,087,905.80/1,630,476.30 = 525,729.80/x
  3. Step 3: Cross multiply
    1,087,905.80x = 1,630,476.30 × 525,729.80
  4. Step 4: Simplify right side
    1,087,905.80x = 857,189,979,103.74
  5. Step 5: Solve for x
    x = 857,189,979,103.74/1,087,905.80
  6. Step 6: Final answer
    x = 787,926.66

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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.