Home / 812,955.96-1,120,072.68-536,823.45

Finding the Fourth Proportional to 812,955.96, 1,120,072.68 and 536,823.45

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Solution

The fourth proportional to 812,955.96, 1,120,072.68 and 536,823.45 is: 739,623.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,955.96 : 1,120,072.68 = 536,823.45 : x
  2. Step 2: Convert to fraction form
    812,955.96/1,120,072.68 = 536,823.45/x
  3. Step 3: Cross multiply
    812,955.96x = 1,120,072.68 × 536,823.45
  4. Step 4: Simplify right side
    812,955.96x = 601,281,280,328.35
  5. Step 5: Solve for x
    x = 601,281,280,328.35/812,955.96
  6. Step 6: Final answer
    x = 739,623.44

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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.