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Finding the Fourth Proportional to 450,702.40, 621,973.92 and 249,494.08

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Solution

The fourth proportional to 450,702.40, 621,973.92 and 249,494.08 is: 344,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,702.40 : 621,973.92 = 249,494.08 : x
  2. Step 2: Convert to fraction form
    450,702.40/621,973.92 = 249,494.08/x
  3. Step 3: Cross multiply
    450,702.40x = 621,973.92 × 249,494.08
  4. Step 4: Simplify right side
    450,702.40x = 155,178,810,954.39
  5. Step 5: Solve for x
    x = 155,178,810,954.39/450,702.40
  6. Step 6: Final answer
    x = 344,304.38

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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.