Home / 1,424,330.13-1,965,762.69-812,342.61

Finding the Fourth Proportional to 1,424,330.13, 1,965,762.69 and 812,342.61

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Solution

The fourth proportional to 1,424,330.13, 1,965,762.69 and 812,342.61 is: 1,121,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,330.13 : 1,965,762.69 = 812,342.61 : x
  2. Step 2: Convert to fraction form
    1,424,330.13/1,965,762.69 = 812,342.61/x
  3. Step 3: Cross multiply
    1,424,330.13x = 1,965,762.69 × 812,342.61
  4. Step 4: Simplify right side
    1,424,330.13x = 1,596,872,785,421.84
  5. Step 5: Solve for x
    x = 1,596,872,785,421.84/1,424,330.13
  6. Step 6: Final answer
    x = 1,121,139.51

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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.