Home / 810,756.14-1,118,784.76-448,186.47

Finding the Fourth Proportional to 810,756.14, 1,118,784.76 and 448,186.47

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Solution

The fourth proportional to 810,756.14, 1,118,784.76 and 448,186.47 is: 618,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,756.14 : 1,118,784.76 = 448,186.47 : x
  2. Step 2: Convert to fraction form
    810,756.14/1,118,784.76 = 448,186.47/x
  3. Step 3: Cross multiply
    810,756.14x = 1,118,784.76 × 448,186.47
  4. Step 4: Simplify right side
    810,756.14x = 501,424,186,958.29
  5. Step 5: Solve for x
    x = 501,424,186,958.29/810,756.14
  6. Step 6: Final answer
    x = 618,464.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.