Home / 920,945.08-1,381,604.45-289,712.08

Finding the Fourth Proportional to 920,945.08, 1,381,604.45 and 289,712.08

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Solution

The fourth proportional to 920,945.08, 1,381,604.45 and 289,712.08 is: 434,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,945.08 : 1,381,604.45 = 289,712.08 : x
  2. Step 2: Convert to fraction form
    920,945.08/1,381,604.45 = 289,712.08/x
  3. Step 3: Cross multiply
    920,945.08x = 1,381,604.45 × 289,712.08
  4. Step 4: Simplify right side
    920,945.08x = 400,267,498,946.76
  5. Step 5: Solve for x
    x = 400,267,498,946.76/920,945.08
  6. Step 6: Final answer
    x = 434,626.89

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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.