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Finding the Fourth Proportional to 709,215.60, 959,307.30 and 709,215.60

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Solution

The fourth proportional to 709,215.60, 959,307.30 and 709,215.60 is: 959,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,215.60 : 959,307.30 = 709,215.60 : x
  2. Step 2: Convert to fraction form
    709,215.60/959,307.30 = 709,215.60/x
  3. Step 3: Cross multiply
    709,215.60x = 959,307.30 × 709,215.60
  4. Step 4: Simplify right side
    709,215.60x = 680,355,702,353.88
  5. Step 5: Solve for x
    x = 680,355,702,353.88/709,215.60
  6. Step 6: Final answer
    x = 959,307.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.