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Finding the Fourth Proportional to 867,870.70, 1,302,000.45 and 335,344.30

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Solution

The fourth proportional to 867,870.70, 1,302,000.45 and 335,344.30 is: 503,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,870.70 : 1,302,000.45 = 335,344.30 : x
  2. Step 2: Convert to fraction form
    867,870.70/1,302,000.45 = 335,344.30/x
  3. Step 3: Cross multiply
    867,870.70x = 1,302,000.45 × 335,344.30
  4. Step 4: Simplify right side
    867,870.70x = 436,618,429,504.94
  5. Step 5: Solve for x
    x = 436,618,429,504.94/867,870.70
  6. Step 6: Final answer
    x = 503,091.57

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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.