Home / 776,328.31-1,071,321.51-432,163.61

Finding the Fourth Proportional to 776,328.31, 1,071,321.51 and 432,163.61

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Solution

The fourth proportional to 776,328.31, 1,071,321.51 and 432,163.61 is: 596,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,328.31 : 1,071,321.51 = 432,163.61 : x
  2. Step 2: Convert to fraction form
    776,328.31/1,071,321.51 = 432,163.61/x
  3. Step 3: Cross multiply
    776,328.31x = 1,071,321.51 × 432,163.61
  4. Step 4: Simplify right side
    776,328.31x = 462,986,168,272.49
  5. Step 5: Solve for x
    x = 462,986,168,272.49/776,328.31
  6. Step 6: Final answer
    x = 596,379.35

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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.