Home / 768,275.69-1,151,417.03-515,176.91

Finding the Fourth Proportional to 768,275.69, 1,151,417.03 and 515,176.91

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Solution

The fourth proportional to 768,275.69, 1,151,417.03 and 515,176.91 is: 772,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,275.69 : 1,151,417.03 = 515,176.91 : x
  2. Step 2: Convert to fraction form
    768,275.69/1,151,417.03 = 515,176.91/x
  3. Step 3: Cross multiply
    768,275.69x = 1,151,417.03 × 515,176.91
  4. Step 4: Simplify right side
    768,275.69x = 593,183,463,621.62
  5. Step 5: Solve for x
    x = 593,183,463,621.62/768,275.69
  6. Step 6: Final answer
    x = 772,097.15

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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.