Home / 948,315.51-1,308,698.12-540,408.63

Finding the Fourth Proportional to 948,315.51, 1,308,698.12 and 540,408.63

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Solution

The fourth proportional to 948,315.51, 1,308,698.12 and 540,408.63 is: 745,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,315.51 : 1,308,698.12 = 540,408.63 : x
  2. Step 2: Convert to fraction form
    948,315.51/1,308,698.12 = 540,408.63/x
  3. Step 3: Cross multiply
    948,315.51x = 1,308,698.12 × 540,408.63
  4. Step 4: Simplify right side
    948,315.51x = 707,231,752,920.31
  5. Step 5: Solve for x
    x = 707,231,752,920.31/948,315.51
  6. Step 6: Final answer
    x = 745,776.85

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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.