Home / 830,678.20-1,246,017.30-618,101.80

Finding the Fourth Proportional to 830,678.20, 1,246,017.30 and 618,101.80

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Solution

The fourth proportional to 830,678.20, 1,246,017.30 and 618,101.80 is: 927,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,678.20 : 1,246,017.30 = 618,101.80 : x
  2. Step 2: Convert to fraction form
    830,678.20/1,246,017.30 = 618,101.80/x
  3. Step 3: Cross multiply
    830,678.20x = 1,246,017.30 × 618,101.80
  4. Step 4: Simplify right side
    830,678.20x = 770,165,535,961.14
  5. Step 5: Solve for x
    x = 770,165,535,961.14/830,678.20
  6. Step 6: Final answer
    x = 927,152.70

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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.