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Finding the Fourth Proportional to 709,597.36, 979,245.30 and 454,948.54

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Solution

The fourth proportional to 709,597.36, 979,245.30 and 454,948.54 is: 627,829.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,597.36 : 979,245.30 = 454,948.54 : x
  2. Step 2: Convert to fraction form
    709,597.36/979,245.30 = 454,948.54/x
  3. Step 3: Cross multiply
    709,597.36x = 979,245.30 × 454,948.54
  4. Step 4: Simplify right side
    709,597.36x = 445,506,219,536.86
  5. Step 5: Solve for x
    x = 445,506,219,536.86/709,597.36
  6. Step 6: Final answer
    x = 627,829.59

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Double scale
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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.