Home / 830,419.26-1,145,978.56-448,446.04

Finding the Fourth Proportional to 830,419.26, 1,145,978.56 and 448,446.04

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Solution

The fourth proportional to 830,419.26, 1,145,978.56 and 448,446.04 is: 618,855.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,419.26 : 1,145,978.56 = 448,446.04 : x
  2. Step 2: Convert to fraction form
    830,419.26/1,145,978.56 = 448,446.04/x
  3. Step 3: Cross multiply
    830,419.26x = 1,145,978.56 × 448,446.04
  4. Step 4: Simplify right side
    830,419.26x = 513,909,547,156.90
  5. Step 5: Solve for x
    x = 513,909,547,156.90/830,419.26
  6. Step 6: Final answer
    x = 618,855.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.