Home / 869,112.90-1,303,669.35-820,124.10

Finding the Fourth Proportional to 869,112.90, 1,303,669.35 and 820,124.10

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Solution

The fourth proportional to 869,112.90, 1,303,669.35 and 820,124.10 is: 1,230,186.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,112.90 : 1,303,669.35 = 820,124.10 : x
  2. Step 2: Convert to fraction form
    869,112.90/1,303,669.35 = 820,124.10/x
  3. Step 3: Cross multiply
    869,112.90x = 1,303,669.35 × 820,124.10
  4. Step 4: Simplify right side
    869,112.90x = 1,069,170,652,366.34
  5. Step 5: Solve for x
    x = 1,069,170,652,366.34/869,112.90
  6. Step 6: Final answer
    x = 1,230,186.15

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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.