Home / 960,078.69-1,440,112.80-391,457.58

Finding the Fourth Proportional to 960,078.69, 1,440,112.80 and 391,457.58

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Solution

The fourth proportional to 960,078.69, 1,440,112.80 and 391,457.58 is: 587,184.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,078.69 : 1,440,112.80 = 391,457.58 : x
  2. Step 2: Convert to fraction form
    960,078.69/1,440,112.80 = 391,457.58/x
  3. Step 3: Cross multiply
    960,078.69x = 1,440,112.80 × 391,457.58
  4. Step 4: Simplify right side
    960,078.69x = 563,743,071,615.02
  5. Step 5: Solve for x
    x = 563,743,071,615.02/960,078.69
  6. Step 6: Final answer
    x = 587,184.24

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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.