Home / 669,905.90-1,003,692.45-433,126.70

Finding the Fourth Proportional to 669,905.90, 1,003,692.45 and 433,126.70

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Solution

The fourth proportional to 669,905.90, 1,003,692.45 and 433,126.70 is: 648,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,905.90 : 1,003,692.45 = 433,126.70 : x
  2. Step 2: Convert to fraction form
    669,905.90/1,003,692.45 = 433,126.70/x
  3. Step 3: Cross multiply
    669,905.90x = 1,003,692.45 × 433,126.70
  4. Step 4: Simplify right side
    669,905.90x = 434,725,998,683.42
  5. Step 5: Solve for x
    x = 434,725,998,683.42/669,905.90
  6. Step 6: Final answer
    x = 648,935.92

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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.