Home / 1,375,848.64-1,898,567.04-772,120

Finding the Fourth Proportional to 1,375,848.64, 1,898,567.04 and 772,120

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Solution

The fourth proportional to 1,375,848.64, 1,898,567.04 and 772,120 is: 1,065,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,848.64 : 1,898,567.04 = 772,120 : x
  2. Step 2: Convert to fraction form
    1,375,848.64/1,898,567.04 = 772,120/x
  3. Step 3: Cross multiply
    1,375,848.64x = 1,898,567.04 × 772,120
  4. Step 4: Simplify right side
    1,375,848.64x = 1,465,921,582,924.80
  5. Step 5: Solve for x
    x = 1,465,921,582,924.80/1,375,848.64
  6. Step 6: Final answer
    x = 1,065,467.19

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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.