Home / 421,427.20-581,521.80-249,350.44

Finding the Fourth Proportional to 421,427.20, 581,521.80 and 249,350.44

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Solution

The fourth proportional to 421,427.20, 581,521.80 and 249,350.44 is: 344,075.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,427.20 : 581,521.80 = 249,350.44 : x
  2. Step 2: Convert to fraction form
    421,427.20/581,521.80 = 249,350.44/x
  3. Step 3: Cross multiply
    421,427.20x = 581,521.80 × 249,350.44
  4. Step 4: Simplify right side
    421,427.20x = 145,002,716,699.59
  5. Step 5: Solve for x
    x = 145,002,716,699.59/421,427.20
  6. Step 6: Final answer
    x = 344,075.36

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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.