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Finding the Fourth Proportional to 653,206.76, 979,810.14 and 210,009.32

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Solution

The fourth proportional to 653,206.76, 979,810.14 and 210,009.32 is: 315,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,206.76 : 979,810.14 = 210,009.32 : x
  2. Step 2: Convert to fraction form
    653,206.76/979,810.14 = 210,009.32/x
  3. Step 3: Cross multiply
    653,206.76x = 979,810.14 × 210,009.32
  4. Step 4: Simplify right side
    653,206.76x = 205,769,261,230.51
  5. Step 5: Solve for x
    x = 205,769,261,230.51/653,206.76
  6. Step 6: Final answer
    x = 315,013.98

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Double scale
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Similar ratio
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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.