Home / 421,423.20-581,516.28-249,346.44

Finding the Fourth Proportional to 421,423.20, 581,516.28 and 249,346.44

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Solution

The fourth proportional to 421,423.20, 581,516.28 and 249,346.44 is: 344,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,423.20 : 581,516.28 = 249,346.44 : x
  2. Step 2: Convert to fraction form
    421,423.20/581,516.28 = 249,346.44/x
  3. Step 3: Cross multiply
    421,423.20x = 581,516.28 × 249,346.44
  4. Step 4: Simplify right side
    421,423.20x = 144,999,014,220.04
  5. Step 5: Solve for x
    x = 144,999,014,220.04/421,423.20
  6. Step 6: Final answer
    x = 344,069.84

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1.5x scale

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.