Home / 879,060.34-1,316,884.37-647,829.38

Finding the Fourth Proportional to 879,060.34, 1,316,884.37 and 647,829.38

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Solution

The fourth proportional to 879,060.34, 1,316,884.37 and 647,829.38 is: 970,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,060.34 : 1,316,884.37 = 647,829.38 : x
  2. Step 2: Convert to fraction form
    879,060.34/1,316,884.37 = 647,829.38/x
  3. Step 3: Cross multiply
    879,060.34x = 1,316,884.37 × 647,829.38
  4. Step 4: Simplify right side
    879,060.34x = 853,116,386,568.36
  5. Step 5: Solve for x
    x = 853,116,386,568.36/879,060.34
  6. Step 6: Final answer
    x = 970,486.72

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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.