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Finding the Fourth Proportional to 649,870.40, 974,805.60 and 460,913.60

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Solution

The fourth proportional to 649,870.40, 974,805.60 and 460,913.60 is: 691,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,870.40 : 974,805.60 = 460,913.60 : x
  2. Step 2: Convert to fraction form
    649,870.40/974,805.60 = 460,913.60/x
  3. Step 3: Cross multiply
    649,870.40x = 974,805.60 × 460,913.60
  4. Step 4: Simplify right side
    649,870.40x = 449,301,158,396.16
  5. Step 5: Solve for x
    x = 449,301,158,396.16/649,870.40
  6. Step 6: Final answer
    x = 691,370.40

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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.