Home / 1,221,000.10-1,831,500.15-623,803.30

Finding the Fourth Proportional to 1,221,000.10, 1,831,500.15 and 623,803.30

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Solution

The fourth proportional to 1,221,000.10, 1,831,500.15 and 623,803.30 is: 935,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,000.10 : 1,831,500.15 = 623,803.30 : x
  2. Step 2: Convert to fraction form
    1,221,000.10/1,831,500.15 = 623,803.30/x
  3. Step 3: Cross multiply
    1,221,000.10x = 1,831,500.15 × 623,803.30
  4. Step 4: Simplify right side
    1,221,000.10x = 1,142,495,837,520.50
  5. Step 5: Solve for x
    x = 1,142,495,837,520.50/1,221,000.10
  6. Step 6: Final answer
    x = 935,704.95

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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.