Home / 720,046.40-1,080,069.60-436,611.20

Finding the Fourth Proportional to 720,046.40, 1,080,069.60 and 436,611.20

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Solution

The fourth proportional to 720,046.40, 1,080,069.60 and 436,611.20 is: 654,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,046.40 : 1,080,069.60 = 436,611.20 : x
  2. Step 2: Convert to fraction form
    720,046.40/1,080,069.60 = 436,611.20/x
  3. Step 3: Cross multiply
    720,046.40x = 1,080,069.60 × 436,611.20
  4. Step 4: Simplify right side
    720,046.40x = 471,570,484,139.52
  5. Step 5: Solve for x
    x = 471,570,484,139.52/720,046.40
  6. Step 6: Final answer
    x = 654,916.80

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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.