Home / 1,312,920-1,810,929.84-803,873.76

Finding the Fourth Proportional to 1,312,920, 1,810,929.84 and 803,873.76

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Solution

The fourth proportional to 1,312,920, 1,810,929.84 and 803,873.76 is: 1,108,794.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,920 : 1,810,929.84 = 803,873.76 : x
  2. Step 2: Convert to fraction form
    1,312,920/1,810,929.84 = 803,873.76/x
  3. Step 3: Cross multiply
    1,312,920x = 1,810,929.84 × 803,873.76
  4. Step 4: Simplify right side
    1,312,920x = 1,455,758,979,577.00
  5. Step 5: Solve for x
    x = 1,455,758,979,577.00/1,312,920
  6. Step 6: Final answer
    x = 1,108,794.88

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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.