Home / 1,087,223.40-1,630,835.10-685,690.20

Finding the Fourth Proportional to 1,087,223.40, 1,630,835.10 and 685,690.20

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Solution

The fourth proportional to 1,087,223.40, 1,630,835.10 and 685,690.20 is: 1,028,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,223.40 : 1,630,835.10 = 685,690.20 : x
  2. Step 2: Convert to fraction form
    1,087,223.40/1,630,835.10 = 685,690.20/x
  3. Step 3: Cross multiply
    1,087,223.40x = 1,630,835.10 × 685,690.20
  4. Step 4: Simplify right side
    1,087,223.40x = 1,118,247,645,886.02
  5. Step 5: Solve for x
    x = 1,118,247,645,886.02/1,087,223.40
  6. Step 6: Final answer
    x = 1,028,535.30

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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.