Home / 1,051,364.20-1,577,435.10-420,730.60

Finding the Fourth Proportional to 1,051,364.20, 1,577,435.10 and 420,730.60

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Solution

The fourth proportional to 1,051,364.20, 1,577,435.10 and 420,730.60 is: 631,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,364.20 : 1,577,435.10 = 420,730.60 : x
  2. Step 2: Convert to fraction form
    1,051,364.20/1,577,435.10 = 420,730.60/x
  3. Step 3: Cross multiply
    1,051,364.20x = 1,577,435.10 × 420,730.60
  4. Step 4: Simplify right side
    1,051,364.20x = 663,675,216,084.06
  5. Step 5: Solve for x
    x = 663,675,216,084.06/1,051,364.20
  6. Step 6: Final answer
    x = 631,251.49

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Double scale
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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.