Home / 1,101,970.76-1,520,636.19-618,442.52

Finding the Fourth Proportional to 1,101,970.76, 1,520,636.19 and 618,442.52

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Solution

The fourth proportional to 1,101,970.76, 1,520,636.19 and 618,442.52 is: 853,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,970.76 : 1,520,636.19 = 618,442.52 : x
  2. Step 2: Convert to fraction form
    1,101,970.76/1,520,636.19 = 618,442.52/x
  3. Step 3: Cross multiply
    1,101,970.76x = 1,520,636.19 × 618,442.52
  4. Step 4: Simplify right side
    1,101,970.76x = 940,426,081,566.75
  5. Step 5: Solve for x
    x = 940,426,081,566.75/1,101,970.76
  6. Step 6: Final answer
    x = 853,403.84

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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.