Home / 1,276,984.61-1,915,421.55-317,419.91

Finding the Fourth Proportional to 1,276,984.61, 1,915,421.55 and 317,419.91

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Solution

The fourth proportional to 1,276,984.61, 1,915,421.55 and 317,419.91 is: 476,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,984.61 : 1,915,421.55 = 317,419.91 : x
  2. Step 2: Convert to fraction form
    1,276,984.61/1,915,421.55 = 317,419.91/x
  3. Step 3: Cross multiply
    1,276,984.61x = 1,915,421.55 × 317,419.91
  4. Step 4: Simplify right side
    1,276,984.61x = 607,992,943,202.71
  5. Step 5: Solve for x
    x = 607,992,943,202.71/1,276,984.61
  6. Step 6: Final answer
    x = 476,116.11

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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.