Home / 578,931.28-867,266.52-398,984.56

Finding the Fourth Proportional to 578,931.28, 867,266.52 and 398,984.56

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Solution

The fourth proportional to 578,931.28, 867,266.52 and 398,984.56 is: 597,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,931.28 : 867,266.52 = 398,984.56 : x
  2. Step 2: Convert to fraction form
    578,931.28/867,266.52 = 398,984.56/x
  3. Step 3: Cross multiply
    578,931.28x = 867,266.52 × 398,984.56
  4. Step 4: Simplify right side
    578,931.28x = 346,025,950,884.93
  5. Step 5: Solve for x
    x = 346,025,950,884.93/578,931.28
  6. Step 6: Final answer
    x = 597,697.80

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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.