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Finding the Fourth Proportional to 440,389.95, 607,717.78 and 249,404.71

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Solution

The fourth proportional to 440,389.95, 607,717.78 and 249,404.71 is: 344,166.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,389.95 : 607,717.78 = 249,404.71 : x
  2. Step 2: Convert to fraction form
    440,389.95/607,717.78 = 249,404.71/x
  3. Step 3: Cross multiply
    440,389.95x = 607,717.78 × 249,404.71
  4. Step 4: Simplify right side
    440,389.95x = 151,567,676,682.74
  5. Step 5: Solve for x
    x = 151,567,676,682.74/440,389.95
  6. Step 6: Final answer
    x = 344,166.97

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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.