Home / 917,458.40-1,376,187.60-819,480.80

Finding the Fourth Proportional to 917,458.40, 1,376,187.60 and 819,480.80

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Solution

The fourth proportional to 917,458.40, 1,376,187.60 and 819,480.80 is: 1,229,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,458.40 : 1,376,187.60 = 819,480.80 : x
  2. Step 2: Convert to fraction form
    917,458.40/1,376,187.60 = 819,480.80/x
  3. Step 3: Cross multiply
    917,458.40x = 1,376,187.60 × 819,480.80
  4. Step 4: Simplify right side
    917,458.40x = 1,127,759,315,398.08
  5. Step 5: Solve for x
    x = 1,127,759,315,398.08/917,458.40
  6. Step 6: Final answer
    x = 1,229,221.20

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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.