Home / 645,271.30-967,032.15-431,431.30

Finding the Fourth Proportional to 645,271.30, 967,032.15 and 431,431.30

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Solution

The fourth proportional to 645,271.30, 967,032.15 and 431,431.30 is: 646,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,271.30 : 967,032.15 = 431,431.30 : x
  2. Step 2: Convert to fraction form
    645,271.30/967,032.15 = 431,431.30/x
  3. Step 3: Cross multiply
    645,271.30x = 967,032.15 × 431,431.30
  4. Step 4: Simplify right side
    645,271.30x = 417,207,937,616.30
  5. Step 5: Solve for x
    x = 417,207,937,616.30/645,271.30
  6. Step 6: Final answer
    x = 646,562.05

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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.