Home / 578,942.42-797,943.06-385,003.46

Finding the Fourth Proportional to 578,942.42, 797,943.06 and 385,003.46

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Solution

The fourth proportional to 578,942.42, 797,943.06 and 385,003.46 is: 530,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,942.42 : 797,943.06 = 385,003.46 : x
  2. Step 2: Convert to fraction form
    578,942.42/797,943.06 = 385,003.46/x
  3. Step 3: Cross multiply
    578,942.42x = 797,943.06 × 385,003.46
  4. Step 4: Simplify right side
    578,942.42x = 307,210,840,977.85
  5. Step 5: Solve for x
    x = 307,210,840,977.85/578,942.42
  6. Step 6: Final answer
    x = 530,641.45

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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.