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Finding the Fourth Proportional to 451,641.40, 623,220.24 and 260,716.30

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Solution

The fourth proportional to 451,641.40, 623,220.24 and 260,716.30 is: 359,762.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,641.40 : 623,220.24 = 260,716.30 : x
  2. Step 2: Convert to fraction form
    451,641.40/623,220.24 = 260,716.30/x
  3. Step 3: Cross multiply
    451,641.40x = 623,220.24 × 260,716.30
  4. Step 4: Simplify right side
    451,641.40x = 162,483,675,057.91
  5. Step 5: Solve for x
    x = 162,483,675,057.91/451,641.40
  6. Step 6: Final answer
    x = 359,762.58

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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.