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Finding the Fourth Proportional to 451,641.99, 623,265 and 260,655.39

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Solution

The fourth proportional to 451,641.99, 623,265 and 260,655.39 is: 359,703.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,641.99 : 623,265 = 260,655.39 : x
  2. Step 2: Convert to fraction form
    451,641.99/623,265 = 260,655.39/x
  3. Step 3: Cross multiply
    451,641.99x = 623,265 × 260,655.39
  4. Step 4: Simplify right side
    451,641.99x = 162,457,381,648.35
  5. Step 5: Solve for x
    x = 162,457,381,648.35/451,641.99
  6. Step 6: Final answer
    x = 359,703.89

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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.