Home / 869,347.12-1,303,909.92-336,503.60

Finding the Fourth Proportional to 869,347.12, 1,303,909.92 and 336,503.60

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Solution

The fourth proportional to 869,347.12, 1,303,909.92 and 336,503.60 is: 504,712.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,347.12 : 1,303,909.92 = 336,503.60 : x
  2. Step 2: Convert to fraction form
    869,347.12/1,303,909.92 = 336,503.60/x
  3. Step 3: Cross multiply
    869,347.12x = 1,303,909.92 × 336,503.60
  4. Step 4: Simplify right side
    869,347.12x = 438,770,382,155.71
  5. Step 5: Solve for x
    x = 438,770,382,155.71/869,347.12
  6. Step 6: Final answer
    x = 504,712.53

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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.