Home / 769,082.72-1,061,328.12-446,981.36

Finding the Fourth Proportional to 769,082.72, 1,061,328.12 and 446,981.36

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Solution

The fourth proportional to 769,082.72, 1,061,328.12 and 446,981.36 is: 616,830.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,082.72 : 1,061,328.12 = 446,981.36 : x
  2. Step 2: Convert to fraction form
    769,082.72/1,061,328.12 = 446,981.36/x
  3. Step 3: Cross multiply
    769,082.72x = 1,061,328.12 × 446,981.36
  4. Step 4: Simplify right side
    769,082.72x = 474,393,886,483.84
  5. Step 5: Solve for x
    x = 474,393,886,483.84/769,082.72
  6. Step 6: Final answer
    x = 616,830.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.