Home / 1,087,206.10-1,630,809.15-911,371.30

Finding the Fourth Proportional to 1,087,206.10, 1,630,809.15 and 911,371.30

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Solution

The fourth proportional to 1,087,206.10, 1,630,809.15 and 911,371.30 is: 1,367,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,206.10 : 1,630,809.15 = 911,371.30 : x
  2. Step 2: Convert to fraction form
    1,087,206.10/1,630,809.15 = 911,371.30/x
  3. Step 3: Cross multiply
    1,087,206.10x = 1,630,809.15 × 911,371.30
  4. Step 4: Simplify right side
    1,087,206.10x = 1,486,272,655,087.40
  5. Step 5: Solve for x
    x = 1,486,272,655,087.40/1,087,206.10
  6. Step 6: Final answer
    x = 1,367,056.95

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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.