Home / 578,056.40-867,084.60-204,117.20

Finding the Fourth Proportional to 578,056.40, 867,084.60 and 204,117.20

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Solution

The fourth proportional to 578,056.40, 867,084.60 and 204,117.20 is: 306,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,056.40 : 867,084.60 = 204,117.20 : x
  2. Step 2: Convert to fraction form
    578,056.40/867,084.60 = 204,117.20/x
  3. Step 3: Cross multiply
    578,056.40x = 867,084.60 × 204,117.20
  4. Step 4: Simplify right side
    578,056.40x = 176,986,880,715.12
  5. Step 5: Solve for x
    x = 176,986,880,715.12/578,056.40
  6. Step 6: Final answer
    x = 306,175.80

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.