Home / 807,869.40-1,211,804.10-471,290.10

Finding the Fourth Proportional to 807,869.40, 1,211,804.10 and 471,290.10

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Solution

The fourth proportional to 807,869.40, 1,211,804.10 and 471,290.10 is: 706,935.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,869.40 : 1,211,804.10 = 471,290.10 : x
  2. Step 2: Convert to fraction form
    807,869.40/1,211,804.10 = 471,290.10/x
  3. Step 3: Cross multiply
    807,869.40x = 1,211,804.10 × 471,290.10
  4. Step 4: Simplify right side
    807,869.40x = 571,111,275,469.41
  5. Step 5: Solve for x
    x = 571,111,275,469.41/807,869.40
  6. Step 6: Final answer
    x = 706,935.15

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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.