Home / 910,999.20-1,366,498.80-842,570.40

Finding the Fourth Proportional to 910,999.20, 1,366,498.80 and 842,570.40

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Solution

The fourth proportional to 910,999.20, 1,366,498.80 and 842,570.40 is: 1,263,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,999.20 : 1,366,498.80 = 842,570.40 : x
  2. Step 2: Convert to fraction form
    910,999.20/1,366,498.80 = 842,570.40/x
  3. Step 3: Cross multiply
    910,999.20x = 1,366,498.80 × 842,570.40
  4. Step 4: Simplify right side
    910,999.20x = 1,151,371,440,515.52
  5. Step 5: Solve for x
    x = 1,151,371,440,515.52/910,999.20
  6. Step 6: Final answer
    x = 1,263,855.60

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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.