Home / 831,602.06-1,147,905.78-492,069.50

Finding the Fourth Proportional to 831,602.06, 1,147,905.78 and 492,069.50

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Solution

The fourth proportional to 831,602.06, 1,147,905.78 and 492,069.50 is: 679,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,602.06 : 1,147,905.78 = 492,069.50 : x
  2. Step 2: Convert to fraction form
    831,602.06/1,147,905.78 = 492,069.50/x
  3. Step 3: Cross multiply
    831,602.06x = 1,147,905.78 × 492,069.50
  4. Step 4: Simplify right side
    831,602.06x = 564,849,423,211.71
  5. Step 5: Solve for x
    x = 564,849,423,211.71/831,602.06
  6. Step 6: Final answer
    x = 679,230.43

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Double scale
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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.