Home / 760,074.60-1,139,359.90-360,012.20

Finding the Fourth Proportional to 760,074.60, 1,139,359.90 and 360,012.20

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Solution

The fourth proportional to 760,074.60, 1,139,359.90 and 360,012.20 is: 539,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,074.60 : 1,139,359.90 = 360,012.20 : x
  2. Step 2: Convert to fraction form
    760,074.60/1,139,359.90 = 360,012.20/x
  3. Step 3: Cross multiply
    760,074.60x = 1,139,359.90 × 360,012.20
  4. Step 4: Simplify right side
    760,074.60x = 410,183,464,190.78
  5. Step 5: Solve for x
    x = 410,183,464,190.78/760,074.60
  6. Step 6: Final answer
    x = 539,662.11

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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.