Home / 811,847.48-1,217,746.02-385,690

Finding the Fourth Proportional to 811,847.48, 1,217,746.02 and 385,690

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Solution

The fourth proportional to 811,847.48, 1,217,746.02 and 385,690 is: 578,523.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,847.48 : 1,217,746.02 = 385,690 : x
  2. Step 2: Convert to fraction form
    811,847.48/1,217,746.02 = 385,690/x
  3. Step 3: Cross multiply
    811,847.48x = 1,217,746.02 × 385,690
  4. Step 4: Simplify right side
    811,847.48x = 469,672,462,453.80
  5. Step 5: Solve for x
    x = 469,672,462,453.80/811,847.48
  6. Step 6: Final answer
    x = 578,523.03

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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.