Home / 916,963.50-1,265,351.31-509,073.42

Finding the Fourth Proportional to 916,963.50, 1,265,351.31 and 509,073.42

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Solution

The fourth proportional to 916,963.50, 1,265,351.31 and 509,073.42 is: 702,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,963.50 : 1,265,351.31 = 509,073.42 : x
  2. Step 2: Convert to fraction form
    916,963.50/1,265,351.31 = 509,073.42/x
  3. Step 3: Cross multiply
    916,963.50x = 1,265,351.31 × 509,073.42
  4. Step 4: Simplify right side
    916,963.50x = 644,156,718,883.18
  5. Step 5: Solve for x
    x = 644,156,718,883.18/916,963.50
  6. Step 6: Final answer
    x = 702,488.94

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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.