Home / 907,621.40-1,361,432.10-809,643.80

Finding the Fourth Proportional to 907,621.40, 1,361,432.10 and 809,643.80

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Solution

The fourth proportional to 907,621.40, 1,361,432.10 and 809,643.80 is: 1,214,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,621.40 : 1,361,432.10 = 809,643.80 : x
  2. Step 2: Convert to fraction form
    907,621.40/1,361,432.10 = 809,643.80/x
  3. Step 3: Cross multiply
    907,621.40x = 1,361,432.10 × 809,643.80
  4. Step 4: Simplify right side
    907,621.40x = 1,102,275,058,885.98
  5. Step 5: Solve for x
    x = 1,102,275,058,885.98/907,621.40
  6. Step 6: Final answer
    x = 1,214,465.70

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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.