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Finding the Fourth Proportional to 450,688.59, 621,950.40 and 249,484.59

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Solution

The fourth proportional to 450,688.59, 621,950.40 and 249,484.59 is: 344,288.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,688.59 : 621,950.40 = 249,484.59 : x
  2. Step 2: Convert to fraction form
    450,688.59/621,950.40 = 249,484.59/x
  3. Step 3: Cross multiply
    450,688.59x = 621,950.40 × 249,484.59
  4. Step 4: Simplify right side
    450,688.59x = 155,167,040,544.34
  5. Step 5: Solve for x
    x = 155,167,040,544.34/450,688.59
  6. Step 6: Final answer
    x = 344,288.81

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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.