Home / 922,928.80-1,273,641.79-509,465.69

Finding the Fourth Proportional to 922,928.80, 1,273,641.79 and 509,465.69

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Solution

The fourth proportional to 922,928.80, 1,273,641.79 and 509,465.69 is: 703,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,928.80 : 1,273,641.79 = 509,465.69 : x
  2. Step 2: Convert to fraction form
    922,928.80/1,273,641.79 = 509,465.69/x
  3. Step 3: Cross multiply
    922,928.80x = 1,273,641.79 × 509,465.69
  4. Step 4: Simplify right side
    922,928.80x = 648,876,793,355.19
  5. Step 5: Solve for x
    x = 648,876,793,355.19/922,928.80
  6. Step 6: Final answer
    x = 703,062.68

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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.