Home / 720,972.40-1,081,458.60-627,660.40

Finding the Fourth Proportional to 720,972.40, 1,081,458.60 and 627,660.40

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Solution

The fourth proportional to 720,972.40, 1,081,458.60 and 627,660.40 is: 941,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,972.40 : 1,081,458.60 = 627,660.40 : x
  2. Step 2: Convert to fraction form
    720,972.40/1,081,458.60 = 627,660.40/x
  3. Step 3: Cross multiply
    720,972.40x = 1,081,458.60 × 627,660.40
  4. Step 4: Simplify right side
    720,972.40x = 678,788,737,459.44
  5. Step 5: Solve for x
    x = 678,788,737,459.44/720,972.40
  6. Step 6: Final answer
    x = 941,490.60

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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.