Home / 760,561.18-1,140,994.01-280,791.90

Finding the Fourth Proportional to 760,561.18, 1,140,994.01 and 280,791.90

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Solution

The fourth proportional to 760,561.18, 1,140,994.01 and 280,791.90 is: 421,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,561.18 : 1,140,994.01 = 280,791.90 : x
  2. Step 2: Convert to fraction form
    760,561.18/1,140,994.01 = 280,791.90/x
  3. Step 3: Cross multiply
    760,561.18x = 1,140,994.01 × 280,791.90
  4. Step 4: Simplify right side
    760,561.18x = 320,381,875,605.53
  5. Step 5: Solve for x
    x = 320,381,875,605.53/760,561.18
  6. Step 6: Final answer
    x = 421,244.05

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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.