Home / 910,906.80-1,257,019.20-503,001.60

Finding the Fourth Proportional to 910,906.80, 1,257,019.20 and 503,001.60

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Solution

The fourth proportional to 910,906.80, 1,257,019.20 and 503,001.60 is: 694,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,906.80 : 1,257,019.20 = 503,001.60 : x
  2. Step 2: Convert to fraction form
    910,906.80/1,257,019.20 = 503,001.60/x
  3. Step 3: Cross multiply
    910,906.80x = 1,257,019.20 × 503,001.60
  4. Step 4: Simplify right side
    910,906.80x = 632,282,668,830.72
  5. Step 5: Solve for x
    x = 632,282,668,830.72/910,906.80
  6. Step 6: Final answer
    x = 694,124.44

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1.5x scale

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.