Home / 921,657.60-1,382,486.40-819,014.40

Finding the Fourth Proportional to 921,657.60, 1,382,486.40 and 819,014.40

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Solution

The fourth proportional to 921,657.60, 1,382,486.40 and 819,014.40 is: 1,228,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,657.60 : 1,382,486.40 = 819,014.40 : x
  2. Step 2: Convert to fraction form
    921,657.60/1,382,486.40 = 819,014.40/x
  3. Step 3: Cross multiply
    921,657.60x = 1,382,486.40 × 819,014.40
  4. Step 4: Simplify right side
    921,657.60x = 1,132,276,269,404.16
  5. Step 5: Solve for x
    x = 1,132,276,269,404.16/921,657.60
  6. Step 6: Final answer
    x = 1,228,521.60

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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.