Home / 830,642.01-1,146,286.47-448,668.78

Finding the Fourth Proportional to 830,642.01, 1,146,286.47 and 448,668.78

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Solution

The fourth proportional to 830,642.01, 1,146,286.47 and 448,668.78 is: 619,163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,642.01 : 1,146,286.47 = 448,668.78 : x
  2. Step 2: Convert to fraction form
    830,642.01/1,146,286.47 = 448,668.78/x
  3. Step 3: Cross multiply
    830,642.01x = 1,146,286.47 × 448,668.78
  4. Step 4: Simplify right side
    830,642.01x = 514,302,952,025.41
  5. Step 5: Solve for x
    x = 514,302,952,025.41/830,642.01
  6. Step 6: Final answer
    x = 619,163.18

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Double scale
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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.