Home / 745,979.52-1,117,642.44-429,783.04

Finding the Fourth Proportional to 745,979.52, 1,117,642.44 and 429,783.04

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Solution

The fourth proportional to 745,979.52, 1,117,642.44 and 429,783.04 is: 643,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,979.52 : 1,117,642.44 = 429,783.04 : x
  2. Step 2: Convert to fraction form
    745,979.52/1,117,642.44 = 429,783.04/x
  3. Step 3: Cross multiply
    745,979.52x = 1,117,642.44 × 429,783.04
  4. Step 4: Simplify right side
    745,979.52x = 480,343,765,496.22
  5. Step 5: Solve for x
    x = 480,343,765,496.22/745,979.52
  6. Step 6: Final answer
    x = 643,910.12

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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.