Home / 809,477.60-1,214,216.40-508,983.80

Finding the Fourth Proportional to 809,477.60, 1,214,216.40 and 508,983.80

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Solution

The fourth proportional to 809,477.60, 1,214,216.40 and 508,983.80 is: 763,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,477.60 : 1,214,216.40 = 508,983.80 : x
  2. Step 2: Convert to fraction form
    809,477.60/1,214,216.40 = 508,983.80/x
  3. Step 3: Cross multiply
    809,477.60x = 1,214,216.40 × 508,983.80
  4. Step 4: Simplify right side
    809,477.60x = 618,016,477,294.32
  5. Step 5: Solve for x
    x = 618,016,477,294.32/809,477.60
  6. Step 6: Final answer
    x = 763,475.70

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1.5x scale

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.