Home / 921,804.80-1,272,677.76-752,441.60

Finding the Fourth Proportional to 921,804.80, 1,272,677.76 and 752,441.60

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Solution

The fourth proportional to 921,804.80, 1,272,677.76 and 752,441.60 is: 1,038,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,804.80 : 1,272,677.76 = 752,441.60 : x
  2. Step 2: Convert to fraction form
    921,804.80/1,272,677.76 = 752,441.60/x
  3. Step 3: Cross multiply
    921,804.80x = 1,272,677.76 × 752,441.60
  4. Step 4: Simplify right side
    921,804.80x = 957,615,690,018.82
  5. Step 5: Solve for x
    x = 957,615,690,018.82/921,804.80
  6. Step 6: Final answer
    x = 1,038,848.67

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1.5x scale

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.