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Finding the Fourth Proportional to 440,392.60, 607,721.48 and 249,407.40

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Solution

The fourth proportional to 440,392.60, 607,721.48 and 249,407.40 is: 344,170.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,392.60 : 607,721.48 = 249,407.40 : x
  2. Step 2: Convert to fraction form
    440,392.60/607,721.48 = 249,407.40/x
  3. Step 3: Cross multiply
    440,392.60x = 607,721.48 × 249,407.40
  4. Step 4: Simplify right side
    440,392.60x = 151,570,234,250.95
  5. Step 5: Solve for x
    x = 151,570,234,250.95/440,392.60
  6. Step 6: Final answer
    x = 344,170.71

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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.