Home / 1,423,013.13-1,963,757.46-778,433.15

Finding the Fourth Proportional to 1,423,013.13, 1,963,757.46 and 778,433.15

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Solution

The fourth proportional to 1,423,013.13, 1,963,757.46 and 778,433.15 is: 1,074,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,013.13 : 1,963,757.46 = 778,433.15 : x
  2. Step 2: Convert to fraction form
    1,423,013.13/1,963,757.46 = 778,433.15/x
  3. Step 3: Cross multiply
    1,423,013.13x = 1,963,757.46 × 778,433.15
  4. Step 4: Simplify right side
    1,423,013.13x = 1,528,653,895,605.01
  5. Step 5: Solve for x
    x = 1,528,653,895,605.01/1,423,013.13
  6. Step 6: Final answer
    x = 1,074,237.38

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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.