Home / 1,425,863.01-1,967,690.70-781,307.40

Finding the Fourth Proportional to 1,425,863.01, 1,967,690.70 and 781,307.40

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Solution

The fourth proportional to 1,425,863.01, 1,967,690.70 and 781,307.40 is: 1,078,204.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,863.01 : 1,967,690.70 = 781,307.40 : x
  2. Step 2: Convert to fraction form
    1,425,863.01/1,967,690.70 = 781,307.40/x
  3. Step 3: Cross multiply
    1,425,863.01x = 1,967,690.70 × 781,307.40
  4. Step 4: Simplify right side
    1,425,863.01x = 1,537,371,304,821.18
  5. Step 5: Solve for x
    x = 1,537,371,304,821.18/1,425,863.01
  6. Step 6: Final answer
    x = 1,078,204.07

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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.