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Finding the Fourth Proportional to 451,640, 623,262.24 and 260,653.40

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Solution

The fourth proportional to 451,640, 623,262.24 and 260,653.40 is: 359,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,640 : 623,262.24 = 260,653.40 : x
  2. Step 2: Convert to fraction form
    451,640/623,262.24 = 260,653.40/x
  3. Step 3: Cross multiply
    451,640x = 623,262.24 × 260,653.40
  4. Step 4: Simplify right side
    451,640x = 162,455,421,947.62
  5. Step 5: Solve for x
    x = 162,455,421,947.62/451,640
  6. Step 6: Final answer
    x = 359,701.14

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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.