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Finding the Fourth Proportional to 450,522, 621,720.36 and 249,330.96

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Solution

The fourth proportional to 450,522, 621,720.36 and 249,330.96 is: 344,076.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,522 : 621,720.36 = 249,330.96 : x
  2. Step 2: Convert to fraction form
    450,522/621,720.36 = 249,330.96/x
  3. Step 3: Cross multiply
    450,522x = 621,720.36 × 249,330.96
  4. Step 4: Simplify right side
    450,522x = 155,014,134,210.35
  5. Step 5: Solve for x
    x = 155,014,134,210.35/450,522
  6. Step 6: Final answer
    x = 344,076.72

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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.