Home / 759,285.55-1,047,731.11-419,688.19

Finding the Fourth Proportional to 759,285.55, 1,047,731.11 and 419,688.19

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Solution

The fourth proportional to 759,285.55, 1,047,731.11 and 419,688.19 is: 579,123.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,285.55 : 1,047,731.11 = 419,688.19 : x
  2. Step 2: Convert to fraction form
    759,285.55/1,047,731.11 = 419,688.19/x
  3. Step 3: Cross multiply
    759,285.55x = 1,047,731.11 × 419,688.19
  4. Step 4: Simplify right side
    759,285.55x = 439,720,373,162.59
  5. Step 5: Solve for x
    x = 439,720,373,162.59/759,285.55
  6. Step 6: Final answer
    x = 579,123.85

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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.