Home / 745,981.56-1,117,645.44-429,785.04

Finding the Fourth Proportional to 745,981.56, 1,117,645.44 and 429,785.04

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Solution

The fourth proportional to 745,981.56, 1,117,645.44 and 429,785.04 is: 643,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,981.56 : 1,117,645.44 = 429,785.04 : x
  2. Step 2: Convert to fraction form
    745,981.56/1,117,645.44 = 429,785.04/x
  3. Step 3: Cross multiply
    745,981.56x = 1,117,645.44 × 429,785.04
  4. Step 4: Simplify right side
    745,981.56x = 480,347,290,136.22
  5. Step 5: Solve for x
    x = 480,347,290,136.22/745,981.56
  6. Step 6: Final answer
    x = 643,913.09

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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.