Home / 421,495.20-581,587.68-249,327.36

Finding the Fourth Proportional to 421,495.20, 581,587.68 and 249,327.36

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Solution

The fourth proportional to 421,495.20, 581,587.68 and 249,327.36 is: 344,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,495.20 : 581,587.68 = 249,327.36 : x
  2. Step 2: Convert to fraction form
    421,495.20/581,587.68 = 249,327.36/x
  3. Step 3: Cross multiply
    421,495.20x = 581,587.68 × 249,327.36
  4. Step 4: Simplify right side
    421,495.20x = 145,005,720,862.93
  5. Step 5: Solve for x
    x = 145,005,720,862.93/421,495.20
  6. Step 6: Final answer
    x = 344,026.98

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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.