Home / 760,929.99-1,139,583.21-440,406.91

Finding the Fourth Proportional to 760,929.99, 1,139,583.21 and 440,406.91

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Solution

The fourth proportional to 760,929.99, 1,139,583.21 and 440,406.91 is: 659,561.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,929.99 : 1,139,583.21 = 440,406.91 : x
  2. Step 2: Convert to fraction form
    760,929.99/1,139,583.21 = 440,406.91/x
  3. Step 3: Cross multiply
    760,929.99x = 1,139,583.21 × 440,406.91
  4. Step 4: Simplify right side
    760,929.99x = 501,880,320,203.98
  5. Step 5: Solve for x
    x = 501,880,320,203.98/760,929.99
  6. Step 6: Final answer
    x = 659,561.76

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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.