Home / 646,986.72-892,869.12-360,507.04

Finding the Fourth Proportional to 646,986.72, 892,869.12 and 360,507.04

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Solution

The fourth proportional to 646,986.72, 892,869.12 and 360,507.04 is: 497,515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,986.72 : 892,869.12 = 360,507.04 : x
  2. Step 2: Convert to fraction form
    646,986.72/892,869.12 = 360,507.04/x
  3. Step 3: Cross multiply
    646,986.72x = 892,869.12 × 360,507.04
  4. Step 4: Simplify right side
    646,986.72x = 321,885,603,558.61
  5. Step 5: Solve for x
    x = 321,885,603,558.61/646,986.72
  6. Step 6: Final answer
    x = 497,515.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.