Home / 811,928.60-1,216,856.10-624,008.60

Finding the Fourth Proportional to 811,928.60, 1,216,856.10 and 624,008.60

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Solution

The fourth proportional to 811,928.60, 1,216,856.10 and 624,008.60 is: 935,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,928.60 : 1,216,856.10 = 624,008.60 : x
  2. Step 2: Convert to fraction form
    811,928.60/1,216,856.10 = 624,008.60/x
  3. Step 3: Cross multiply
    811,928.60x = 1,216,856.10 × 624,008.60
  4. Step 4: Simplify right side
    811,928.60x = 759,328,671,362.46
  5. Step 5: Solve for x
    x = 759,328,671,362.46/811,928.60
  6. Step 6: Final answer
    x = 935,216.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.