Home / 1,320,904-1,822,870.20-717,292

Finding the Fourth Proportional to 1,320,904, 1,822,870.20 and 717,292

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Solution

The fourth proportional to 1,320,904, 1,822,870.20 and 717,292 is: 989,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,904 : 1,822,870.20 = 717,292 : x
  2. Step 2: Convert to fraction form
    1,320,904/1,822,870.20 = 717,292/x
  3. Step 3: Cross multiply
    1,320,904x = 1,822,870.20 × 717,292
  4. Step 4: Simplify right side
    1,320,904x = 1,307,530,211,498.40
  5. Step 5: Solve for x
    x = 1,307,530,211,498.40/1,320,904
  6. Step 6: Final answer
    x = 989,875.28

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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.