Home / 1,125,785.82-1,688,668.16-486,541.52

Finding the Fourth Proportional to 1,125,785.82, 1,688,668.16 and 486,541.52

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Solution

The fourth proportional to 1,125,785.82, 1,688,668.16 and 486,541.52 is: 729,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,785.82 : 1,688,668.16 = 486,541.52 : x
  2. Step 2: Convert to fraction form
    1,125,785.82/1,688,668.16 = 486,541.52/x
  3. Step 3: Cross multiply
    1,125,785.82x = 1,688,668.16 × 486,541.52
  4. Step 4: Simplify right side
    1,125,785.82x = 821,607,168,798.46
  5. Step 5: Solve for x
    x = 821,607,168,798.46/1,125,785.82
  6. Step 6: Final answer
    x = 729,807.71

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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.