Home / 1,030,456.91-1,545,689.31-430,997.55

Finding the Fourth Proportional to 1,030,456.91, 1,545,689.31 and 430,997.55

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Solution

The fourth proportional to 1,030,456.91, 1,545,689.31 and 430,997.55 is: 646,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,456.91 : 1,545,689.31 = 430,997.55 : x
  2. Step 2: Convert to fraction form
    1,030,456.91/1,545,689.31 = 430,997.55/x
  3. Step 3: Cross multiply
    1,030,456.91x = 1,545,689.31 × 430,997.55
  4. Step 4: Simplify right side
    1,030,456.91x = 666,188,305,671.19
  5. Step 5: Solve for x
    x = 666,188,305,671.19/1,030,456.91
  6. Step 6: Final answer
    x = 646,497.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.