Home / 664,079.23-916,358.68-373,685.72

Finding the Fourth Proportional to 664,079.23, 916,358.68 and 373,685.72

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Solution

The fourth proportional to 664,079.23, 916,358.68 and 373,685.72 is: 515,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,079.23 : 916,358.68 = 373,685.72 : x
  2. Step 2: Convert to fraction form
    664,079.23/916,358.68 = 373,685.72/x
  3. Step 3: Cross multiply
    664,079.23x = 916,358.68 × 373,685.72
  4. Step 4: Simplify right side
    664,079.23x = 342,430,154,247.58
  5. Step 5: Solve for x
    x = 342,430,154,247.58/664,079.23
  6. Step 6: Final answer
    x = 515,646.54

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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.