Home / 669,912.40-1,003,702.20-433,133.20

Finding the Fourth Proportional to 669,912.40, 1,003,702.20 and 433,133.20

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Solution

The fourth proportional to 669,912.40, 1,003,702.20 and 433,133.20 is: 648,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,912.40 : 1,003,702.20 = 433,133.20 : x
  2. Step 2: Convert to fraction form
    669,912.40/1,003,702.20 = 433,133.20/x
  3. Step 3: Cross multiply
    669,912.40x = 1,003,702.20 × 433,133.20
  4. Step 4: Simplify right side
    669,912.40x = 434,736,745,733.04
  5. Step 5: Solve for x
    x = 434,736,745,733.04/669,912.40
  6. Step 6: Final answer
    x = 648,945.66

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1.5x scale

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.