Home / 758,426.34-1,046,633.78-418,894.60

Finding the Fourth Proportional to 758,426.34, 1,046,633.78 and 418,894.60

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Solution

The fourth proportional to 758,426.34, 1,046,633.78 and 418,894.60 is: 578,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,426.34 : 1,046,633.78 = 418,894.60 : x
  2. Step 2: Convert to fraction form
    758,426.34/1,046,633.78 = 418,894.60/x
  3. Step 3: Cross multiply
    758,426.34x = 1,046,633.78 × 418,894.60
  4. Step 4: Simplify right side
    758,426.34x = 438,429,238,619.59
  5. Step 5: Solve for x
    x = 438,429,238,619.59/758,426.34
  6. Step 6: Final answer
    x = 578,077.55

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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.