Home / 872,321.40-1,306,382.58-590,985.72

Finding the Fourth Proportional to 872,321.40, 1,306,382.58 and 590,985.72

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Solution

The fourth proportional to 872,321.40, 1,306,382.58 and 590,985.72 is: 885,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,321.40 : 1,306,382.58 = 590,985.72 : x
  2. Step 2: Convert to fraction form
    872,321.40/1,306,382.58 = 590,985.72/x
  3. Step 3: Cross multiply
    872,321.40x = 1,306,382.58 × 590,985.72
  4. Step 4: Simplify right side
    872,321.40x = 772,053,449,636.76
  5. Step 5: Solve for x
    x = 772,053,449,636.76/872,321.40
  6. Step 6: Final answer
    x = 885,056.18

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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.