Home / 664,265.22-916,457.49-402,704.88

Finding the Fourth Proportional to 664,265.22, 916,457.49 and 402,704.88

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Solution

The fourth proportional to 664,265.22, 916,457.49 and 402,704.88 is: 555,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,265.22 : 916,457.49 = 402,704.88 : x
  2. Step 2: Convert to fraction form
    664,265.22/916,457.49 = 402,704.88/x
  3. Step 3: Cross multiply
    664,265.22x = 916,457.49 × 402,704.88
  4. Step 4: Simplify right side
    664,265.22x = 369,061,903,535.55
  5. Step 5: Solve for x
    x = 369,061,903,535.55/664,265.22
  6. Step 6: Final answer
    x = 555,594.20

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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.