Home / 916,930.90-1,375,457.10-243,002.80

Finding the Fourth Proportional to 916,930.90, 1,375,457.10 and 243,002.80

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Solution

The fourth proportional to 916,930.90, 1,375,457.10 and 243,002.80 is: 364,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,930.90 : 1,375,457.10 = 243,002.80 : x
  2. Step 2: Convert to fraction form
    916,930.90/1,375,457.10 = 243,002.80/x
  3. Step 3: Cross multiply
    916,930.90x = 1,375,457.10 × 243,002.80
  4. Step 4: Simplify right side
    916,930.90x = 334,239,926,579.88
  5. Step 5: Solve for x
    x = 334,239,926,579.88/916,930.90
  6. Step 6: Final answer
    x = 364,520.30

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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.