Home / 1,312,678.20-1,967,829.30-913,510.20

Finding the Fourth Proportional to 1,312,678.20, 1,967,829.30 and 913,510.20

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Solution

The fourth proportional to 1,312,678.20, 1,967,829.30 and 913,510.20 is: 1,369,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,678.20 : 1,967,829.30 = 913,510.20 : x
  2. Step 2: Convert to fraction form
    1,312,678.20/1,967,829.30 = 913,510.20/x
  3. Step 3: Cross multiply
    1,312,678.20x = 1,967,829.30 × 913,510.20
  4. Step 4: Simplify right side
    1,312,678.20x = 1,797,632,137,408.86
  5. Step 5: Solve for x
    x = 1,797,632,137,408.86/1,312,678.20
  6. Step 6: Final answer
    x = 1,369,438.56

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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.