Home / 1,423,903.60-2,135,855.40-426,631.60

Finding the Fourth Proportional to 1,423,903.60, 2,135,855.40 and 426,631.60

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Solution

The fourth proportional to 1,423,903.60, 2,135,855.40 and 426,631.60 is: 639,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,903.60 : 2,135,855.40 = 426,631.60 : x
  2. Step 2: Convert to fraction form
    1,423,903.60/2,135,855.40 = 426,631.60/x
  3. Step 3: Cross multiply
    1,423,903.60x = 2,135,855.40 × 426,631.60
  4. Step 4: Simplify right side
    1,423,903.60x = 911,223,406,670.64
  5. Step 5: Solve for x
    x = 911,223,406,670.64/1,423,903.60
  6. Step 6: Final answer
    x = 639,947.40

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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.