Home / 1,087,298.20-1,630,947.30-709,384.60

Finding the Fourth Proportional to 1,087,298.20, 1,630,947.30 and 709,384.60

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Solution

The fourth proportional to 1,087,298.20, 1,630,947.30 and 709,384.60 is: 1,064,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,298.20 : 1,630,947.30 = 709,384.60 : x
  2. Step 2: Convert to fraction form
    1,087,298.20/1,630,947.30 = 709,384.60/x
  3. Step 3: Cross multiply
    1,087,298.20x = 1,630,947.30 × 709,384.60
  4. Step 4: Simplify right side
    1,087,298.20x = 1,156,968,898,031.58
  5. Step 5: Solve for x
    x = 1,156,968,898,031.58/1,087,298.20
  6. Step 6: Final answer
    x = 1,064,076.90

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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.