Home / 1,440,521.28-2,160,401.76-429,370.56

Finding the Fourth Proportional to 1,440,521.28, 2,160,401.76 and 429,370.56

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Solution

The fourth proportional to 1,440,521.28, 2,160,401.76 and 429,370.56 is: 643,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,521.28 : 2,160,401.76 = 429,370.56 : x
  2. Step 2: Convert to fraction form
    1,440,521.28/2,160,401.76 = 429,370.56/x
  3. Step 3: Cross multiply
    1,440,521.28x = 2,160,401.76 × 429,370.56
  4. Step 4: Simplify right side
    1,440,521.28x = 927,612,913,516.19
  5. Step 5: Solve for x
    x = 927,612,913,516.19/1,440,521.28
  6. Step 6: Final answer
    x = 643,942.53

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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.