Home / 1,255,070.40-1,882,201.12-413,421.76

Finding the Fourth Proportional to 1,255,070.40, 1,882,201.12 and 413,421.76

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Solution

The fourth proportional to 1,255,070.40, 1,882,201.12 and 413,421.76 is: 619,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,070.40 : 1,882,201.12 = 413,421.76 : x
  2. Step 2: Convert to fraction form
    1,255,070.40/1,882,201.12 = 413,421.76/x
  3. Step 3: Cross multiply
    1,255,070.40x = 1,882,201.12 × 413,421.76
  4. Step 4: Simplify right side
    1,255,070.40x = 778,142,899,704.37
  5. Step 5: Solve for x
    x = 778,142,899,704.37/1,255,070.40
  6. Step 6: Final answer
    x = 619,999.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.