Home / 498,532.02-687,280.50-421,327.77

Finding the Fourth Proportional to 498,532.02, 687,280.50 and 421,327.77

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Solution

The fourth proportional to 498,532.02, 687,280.50 and 421,327.77 is: 580,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,532.02 : 687,280.50 = 421,327.77 : x
  2. Step 2: Convert to fraction form
    498,532.02/687,280.50 = 421,327.77/x
  3. Step 3: Cross multiply
    498,532.02x = 687,280.50 × 421,327.77
  4. Step 4: Simplify right side
    498,532.02x = 289,570,360,429.49
  5. Step 5: Solve for x
    x = 289,570,360,429.49/498,532.02
  6. Step 6: Final answer
    x = 580,846.06

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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.