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Finding the Fourth Proportional to 612,071.60, 918,107.40 and 606,166.70

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Solution

The fourth proportional to 612,071.60, 918,107.40 and 606,166.70 is: 909,250.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,071.60 : 918,107.40 = 606,166.70 : x
  2. Step 2: Convert to fraction form
    612,071.60/918,107.40 = 606,166.70/x
  3. Step 3: Cross multiply
    612,071.60x = 918,107.40 × 606,166.70
  4. Step 4: Simplify right side
    612,071.60x = 556,526,132,903.58
  5. Step 5: Solve for x
    x = 556,526,132,903.58/612,071.60
  6. Step 6: Final answer
    x = 909,250.05

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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.