Home / 740,709.30-1,021,803.24-468,318.45

Finding the Fourth Proportional to 740,709.30, 1,021,803.24 and 468,318.45

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Solution

The fourth proportional to 740,709.30, 1,021,803.24 and 468,318.45 is: 646,041.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,709.30 : 1,021,803.24 = 468,318.45 : x
  2. Step 2: Convert to fraction form
    740,709.30/1,021,803.24 = 468,318.45/x
  3. Step 3: Cross multiply
    740,709.30x = 1,021,803.24 × 468,318.45
  4. Step 4: Simplify right side
    740,709.30x = 478,529,309,561.78
  5. Step 5: Solve for x
    x = 478,529,309,561.78/740,709.30
  6. Step 6: Final answer
    x = 646,041.99

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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.