Home / 989,210.70-1,364,677.20-581,128.38

Finding the Fourth Proportional to 989,210.70, 1,364,677.20 and 581,128.38

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Solution

The fourth proportional to 989,210.70, 1,364,677.20 and 581,128.38 is: 801,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,210.70 : 1,364,677.20 = 581,128.38 : x
  2. Step 2: Convert to fraction form
    989,210.70/1,364,677.20 = 581,128.38/x
  3. Step 3: Cross multiply
    989,210.70x = 1,364,677.20 × 581,128.38
  4. Step 4: Simplify right side
    989,210.70x = 793,052,650,458.94
  5. Step 5: Solve for x
    x = 793,052,650,458.94/989,210.70
  6. Step 6: Final answer
    x = 801,702.46

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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.