Home / 808,006.40-1,212,009.60-471,427.10

Finding the Fourth Proportional to 808,006.40, 1,212,009.60 and 471,427.10

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Solution

The fourth proportional to 808,006.40, 1,212,009.60 and 471,427.10 is: 707,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,006.40 : 1,212,009.60 = 471,427.10 : x
  2. Step 2: Convert to fraction form
    808,006.40/1,212,009.60 = 471,427.10/x
  3. Step 3: Cross multiply
    808,006.40x = 1,212,009.60 × 471,427.10
  4. Step 4: Simplify right side
    808,006.40x = 571,374,170,900.16
  5. Step 5: Solve for x
    x = 571,374,170,900.16/808,006.40
  6. Step 6: Final answer
    x = 707,140.65

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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.