Home / 742,702.65-1,024,932.74-420,474.93

Finding the Fourth Proportional to 742,702.65, 1,024,932.74 and 420,474.93

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Solution

The fourth proportional to 742,702.65, 1,024,932.74 and 420,474.93 is: 580,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,702.65 : 1,024,932.74 = 420,474.93 : x
  2. Step 2: Convert to fraction form
    742,702.65/1,024,932.74 = 420,474.93/x
  3. Step 3: Cross multiply
    742,702.65x = 1,024,932.74 × 420,474.93
  4. Step 4: Simplify right side
    742,702.65x = 430,958,520,003.83
  5. Step 5: Solve for x
    x = 430,958,520,003.83/742,702.65
  6. Step 6: Final answer
    x = 580,257.15

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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.