Home / 668,730.90-1,003,096.35-631,989.30

Finding the Fourth Proportional to 668,730.90, 1,003,096.35 and 631,989.30

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Solution

The fourth proportional to 668,730.90, 1,003,096.35 and 631,989.30 is: 947,983.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,730.90 : 1,003,096.35 = 631,989.30 : x
  2. Step 2: Convert to fraction form
    668,730.90/1,003,096.35 = 631,989.30/x
  3. Step 3: Cross multiply
    668,730.90x = 1,003,096.35 × 631,989.30
  4. Step 4: Simplify right side
    668,730.90x = 633,946,160,069.06
  5. Step 5: Solve for x
    x = 633,946,160,069.06/668,730.90
  6. Step 6: Final answer
    x = 947,983.95

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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.