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Finding the Fourth Proportional to 651,860.75, 899,569.80 and 361,492.76

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Solution

The fourth proportional to 651,860.75, 899,569.80 and 361,492.76 is: 498,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,860.75 : 899,569.80 = 361,492.76 : x
  2. Step 2: Convert to fraction form
    651,860.75/899,569.80 = 361,492.76/x
  3. Step 3: Cross multiply
    651,860.75x = 899,569.80 × 361,492.76
  4. Step 4: Simplify right side
    651,860.75x = 325,187,965,316.80
  5. Step 5: Solve for x
    x = 325,187,965,316.80/651,860.75
  6. Step 6: Final answer
    x = 498,861.10

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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.