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Finding the Fourth Proportional to 665,254.40, 997,881.60 and 665,254.40

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Solution

The fourth proportional to 665,254.40, 997,881.60 and 665,254.40 is: 997,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,254.40 : 997,881.60 = 665,254.40 : x
  2. Step 2: Convert to fraction form
    665,254.40/997,881.60 = 665,254.40/x
  3. Step 3: Cross multiply
    665,254.40x = 997,881.60 × 665,254.40
  4. Step 4: Simplify right side
    665,254.40x = 663,845,125,079.04
  5. Step 5: Solve for x
    x = 663,845,125,079.04/665,254.40
  6. Step 6: Final answer
    x = 997,881.60

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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.