Home / 758,890.56-1,047,269.34-419,358.81

Finding the Fourth Proportional to 758,890.56, 1,047,269.34 and 419,358.81

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Solution

The fourth proportional to 758,890.56, 1,047,269.34 and 419,358.81 is: 578,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,890.56 : 1,047,269.34 = 419,358.81 : x
  2. Step 2: Convert to fraction form
    758,890.56/1,047,269.34 = 419,358.81/x
  3. Step 3: Cross multiply
    758,890.56x = 1,047,269.34 × 419,358.81
  4. Step 4: Simplify right side
    758,890.56x = 439,181,624,171.89
  5. Step 5: Solve for x
    x = 439,181,624,171.89/758,890.56
  6. Step 6: Final answer
    x = 578,715.36

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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.