Home / 1,352,890.20-1,864,820.40-917,174.16

Finding the Fourth Proportional to 1,352,890.20, 1,864,820.40 and 917,174.16

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Solution

The fourth proportional to 1,352,890.20, 1,864,820.40 and 917,174.16 is: 1,264,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,890.20 : 1,864,820.40 = 917,174.16 : x
  2. Step 2: Convert to fraction form
    1,352,890.20/1,864,820.40 = 917,174.16/x
  3. Step 3: Cross multiply
    1,352,890.20x = 1,864,820.40 × 917,174.16
  4. Step 4: Simplify right side
    1,352,890.20x = 1,710,365,083,920.86
  5. Step 5: Solve for x
    x = 1,710,365,083,920.86/1,352,890.20
  6. Step 6: Final answer
    x = 1,264,230.52

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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.