Home / 780,591.99-1,076,822.33-522,479.91

Finding the Fourth Proportional to 780,591.99, 1,076,822.33 and 522,479.91

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Solution

The fourth proportional to 780,591.99, 1,076,822.33 and 522,479.91 is: 720,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,591.99 : 1,076,822.33 = 522,479.91 : x
  2. Step 2: Convert to fraction form
    780,591.99/1,076,822.33 = 522,479.91/x
  3. Step 3: Cross multiply
    780,591.99x = 1,076,822.33 × 522,479.91
  4. Step 4: Simplify right side
    780,591.99x = 562,618,031,451.99
  5. Step 5: Solve for x
    x = 562,618,031,451.99/780,591.99
  6. Step 6: Final answer
    x = 720,758.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.