Home / 948,128.14-1,308,537.21-540,376.57

Finding the Fourth Proportional to 948,128.14, 1,308,537.21 and 540,376.57

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Solution

The fourth proportional to 948,128.14, 1,308,537.21 and 540,376.57 is: 745,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,128.14 : 1,308,537.21 = 540,376.57 : x
  2. Step 2: Convert to fraction form
    948,128.14/1,308,537.21 = 540,376.57/x
  3. Step 3: Cross multiply
    948,128.14x = 1,308,537.21 × 540,376.57
  4. Step 4: Simplify right side
    948,128.14x = 707,102,849,257.17
  5. Step 5: Solve for x
    x = 707,102,849,257.17/948,128.14
  6. Step 6: Final answer
    x = 745,788.27

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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.