Home / 2,686,291.20-4,029,436.80-2,415,686.40

Finding the Fourth Proportional to 2,686,291.20, 4,029,436.80 and 2,415,686.40

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Solution

The fourth proportional to 2,686,291.20, 4,029,436.80 and 2,415,686.40 is: 3,623,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,291.20 : 4,029,436.80 = 2,415,686.40 : x
  2. Step 2: Convert to fraction form
    2,686,291.20/4,029,436.80 = 2,415,686.40/x
  3. Step 3: Cross multiply
    2,686,291.20x = 4,029,436.80 × 2,415,686.40
  4. Step 4: Simplify right side
    2,686,291.20x = 9,733,855,677,419.52
  5. Step 5: Solve for x
    x = 9,733,855,677,419.52/2,686,291.20
  6. Step 6: Final answer
    x = 3,623,529.60

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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.