Home / 945,321.90-1,411,955.16-855,225.70

Finding the Fourth Proportional to 945,321.90, 1,411,955.16 and 855,225.70

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Solution

The fourth proportional to 945,321.90, 1,411,955.16 and 855,225.70 is: 1,277,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,321.90 : 1,411,955.16 = 855,225.70 : x
  2. Step 2: Convert to fraction form
    945,321.90/1,411,955.16 = 855,225.70/x
  3. Step 3: Cross multiply
    945,321.90x = 1,411,955.16 × 855,225.70
  4. Step 4: Simplify right side
    945,321.90x = 1,207,540,342,124.40
  5. Step 5: Solve for x
    x = 1,207,540,342,124.40/945,321.90
  6. Step 6: Final answer
    x = 1,277,385.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.