Home / 912,768.99-1,369,826.20-432,998.30

Finding the Fourth Proportional to 912,768.99, 1,369,826.20 and 432,998.30

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Solution

The fourth proportional to 912,768.99, 1,369,826.20 and 432,998.30 is: 649,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,768.99 : 1,369,826.20 = 432,998.30 : x
  2. Step 2: Convert to fraction form
    912,768.99/1,369,826.20 = 432,998.30/x
  3. Step 3: Cross multiply
    912,768.99x = 1,369,826.20 × 432,998.30
  4. Step 4: Simplify right side
    912,768.99x = 593,132,415,895.46
  5. Step 5: Solve for x
    x = 593,132,415,895.46/912,768.99
  6. Step 6: Final answer
    x = 649,816.57

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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.