Home / 1,566,354.54-2,161,518.30-921,810

Finding the Fourth Proportional to 1,566,354.54, 2,161,518.30 and 921,810

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Solution

The fourth proportional to 1,566,354.54, 2,161,518.30 and 921,810 is: 1,272,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566,354.54 : 2,161,518.30 = 921,810 : x
  2. Step 2: Convert to fraction form
    1,566,354.54/2,161,518.30 = 921,810/x
  3. Step 3: Cross multiply
    1,566,354.54x = 2,161,518.30 × 921,810
  4. Step 4: Simplify right side
    1,566,354.54x = 1,992,509,184,123.00
  5. Step 5: Solve for x
    x = 1,992,509,184,123.00/1,566,354.54
  6. Step 6: Final answer
    x = 1,272,067.81

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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.