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Finding the Fourth Proportional to 453,007.69, 679,511.53 and 120,583.69

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Solution

The fourth proportional to 453,007.69, 679,511.53 and 120,583.69 is: 180,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,007.69 : 679,511.53 = 120,583.69 : x
  2. Step 2: Convert to fraction form
    453,007.69/679,511.53 = 120,583.69/x
  3. Step 3: Cross multiply
    453,007.69x = 679,511.53 × 120,583.69
  4. Step 4: Simplify right side
    453,007.69x = 81,938,006,136.90
  5. Step 5: Solve for x
    x = 81,938,006,136.90/453,007.69
  6. Step 6: Final answer
    x = 180,875.53

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Similar ratio
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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.