Home / 988,805.10-1,364,577.90-559,149.50

Finding the Fourth Proportional to 988,805.10, 1,364,577.90 and 559,149.50

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Solution

The fourth proportional to 988,805.10, 1,364,577.90 and 559,149.50 is: 771,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,805.10 : 1,364,577.90 = 559,149.50 : x
  2. Step 2: Convert to fraction form
    988,805.10/1,364,577.90 = 559,149.50/x
  3. Step 3: Cross multiply
    988,805.10x = 1,364,577.90 × 559,149.50
  4. Step 4: Simplify right side
    988,805.10x = 763,003,050,496.05
  5. Step 5: Solve for x
    x = 763,003,050,496.05/988,805.10
  6. Step 6: Final answer
    x = 771,641.50

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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.