Home / 1,143,407.20-1,577,825.04-634,090.72

Finding the Fourth Proportional to 1,143,407.20, 1,577,825.04 and 634,090.72

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Solution

The fourth proportional to 1,143,407.20, 1,577,825.04 and 634,090.72 is: 875,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,407.20 : 1,577,825.04 = 634,090.72 : x
  2. Step 2: Convert to fraction form
    1,143,407.20/1,577,825.04 = 634,090.72/x
  3. Step 3: Cross multiply
    1,143,407.20x = 1,577,825.04 × 634,090.72
  4. Step 4: Simplify right side
    1,143,407.20x = 1,000,484,215,647.63
  5. Step 5: Solve for x
    x = 1,000,484,215,647.63/1,143,407.20
  6. Step 6: Final answer
    x = 875,002.55

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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.