Home / 760,415.55-1,140,214.20-304,778.14

Finding the Fourth Proportional to 760,415.55, 1,140,214.20 and 304,778.14

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Solution

The fourth proportional to 760,415.55, 1,140,214.20 and 304,778.14 is: 457,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,415.55 : 1,140,214.20 = 304,778.14 : x
  2. Step 2: Convert to fraction form
    760,415.55/1,140,214.20 = 304,778.14/x
  3. Step 3: Cross multiply
    760,415.55x = 1,140,214.20 × 304,778.14
  4. Step 4: Simplify right side
    760,415.55x = 347,512,359,514.42
  5. Step 5: Solve for x
    x = 347,512,359,514.42/760,415.55
  6. Step 6: Final answer
    x = 457,003.23

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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.