Home / 728,731,948.32-1,004,604,127.20-519,524,884.80

Finding the Fourth Proportional to 728,731,948.32, 1,004,604,127.20 and 519,524,884.80

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Solution

The fourth proportional to 728,731,948.32, 1,004,604,127.20 and 519,524,884.80 is: 716,198,658.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,731,948.32 : 1,004,604,127.20 = 519,524,884.80 : x
  2. Step 2: Convert to fraction form
    728,731,948.32/1,004,604,127.20 = 519,524,884.80/x
  3. Step 3: Cross multiply
    728,731,948.32x = 1,004,604,127.20 × 519,524,884.80
  4. Step 4: Simplify right side
    728,731,948.32x = 521,916,843,453,184,576
  5. Step 5: Solve for x
    x = 521,916,843,453,184,576/728,731,948.32
  6. Step 6: Final answer
    x = 716,198,658.03

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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.