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Finding the Fourth Proportional to 670,142.76, 924,804.09 and 364,219.17

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Solution

The fourth proportional to 670,142.76, 924,804.09 and 364,219.17 is: 502,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,142.76 : 924,804.09 = 364,219.17 : x
  2. Step 2: Convert to fraction form
    670,142.76/924,804.09 = 364,219.17/x
  3. Step 3: Cross multiply
    670,142.76x = 924,804.09 × 364,219.17
  4. Step 4: Simplify right side
    670,142.76x = 336,831,378,072.41
  5. Step 5: Solve for x
    x = 336,831,378,072.41/670,142.76
  6. Step 6: Final answer
    x = 502,626.30

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Half scale
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Double scale
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Similar ratio
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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.