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Finding the Fourth Proportional to 760,002.40, 1,140,003.60 and 460,820.80

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Solution

The fourth proportional to 760,002.40, 1,140,003.60 and 460,820.80 is: 691,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,002.40 : 1,140,003.60 = 460,820.80 : x
  2. Step 2: Convert to fraction form
    760,002.40/1,140,003.60 = 460,820.80/x
  3. Step 3: Cross multiply
    760,002.40x = 1,140,003.60 × 460,820.80
  4. Step 4: Simplify right side
    760,002.40x = 525,337,370,954.88
  5. Step 5: Solve for x
    x = 525,337,370,954.88/760,002.40
  6. Step 6: Final answer
    x = 691,231.20

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Similar ratio
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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.